SEIKO 3X22 Astron GPS Solar Watch User Guide
- June 10, 2024
- Seiko
Table of Contents
3X22 Astron GPS Solar Watch
Product Information: ASTRON 3X22 GPS Solar Watch
The ASTRON 3X22 GPS Solar Watch is a high-quality watch from
SEIKO. This watch comes with various features such as a GPS, solar
power source, and metallic band. The watch has a secondary battery
that requires professional knowledge and skill to replace. This
watch is not suitable for certain environments such as places
affected by volatile agents or strong magnetism.
Features:
- GPS
- Solar power source
- Metallic band
- Secondary battery
Handling Cautions:
Please note that there is a risk of serious consequences such as
severe injury if the following safety regulations are not strictly
observed:
-
Immediately stop wearing the watch if the watch body or band
becomes edged by corrosion, or if the pins protrude from the
band. -
Keep the watch and accessories out of the reach of babies and
children to avoid accidental swallowing of the accessories. -
Do not remove the secondary battery from the watch as it
requires professional knowledge and skill to replace. Replacing it
with an ordinary silver oxide battery can cause bursting and
ignition. -
Avoid wearing or keeping the watch in places where volatile
agents, strong magnetism or static electricity, strong vibrations,
high humidity, or dusty environments are present. -
If you observe any allergic symptoms or skin irritation, stop
wearing the watch immediately and consult a specialist. -
Keep the watch out of the reach of babies and children to avoid
risks of injury or allergic reactions.
Product Usage Instructions:
Before using your ASTRON 3X22 GPS Solar Watch, please read the
manual carefully and keep it handy for future reference. Follow
these instructions for proper and safe use of your SEIKO watch:
-
Make sure to peel off the protective film from the watch before
using it to avoid dirt, sweat, dust, or moisture from attaching to
the film and causing rust. -
For length adjustment of the metallic band, please contact the
retailer from whom the watch was purchased as specialized knowledge
and expertise are necessary. Do not attempt to adjust the metallic
band yourself to avoid injury or loss of parts. -
If you cannot have your watch repaired by the retailer from
whom it was purchased, or you moved to a distant place, please
contact SEIKO CUSTOMER SERVICE CENTER for assistance in repairing
the watch.
By following these instructions and handling cautions, you can
ensure the proper and safe use of your ASTRON 3X22 GPS Solar Watch.
Enjoy using your SEIKO watch!
.
.
READ FIRST
CONTENTS
Complete User Guide 3X22 GPS Solar Watch
ASTRON 3X22 GPS SOLAR
Thank you very much for choosing a SEIKO watch. For proper and safe use of
your SEIKO watch, please read carefully the instructions in this booklet
before using it. Keep this manual handy for easy reference.
- Length adjustment service for metallic bands is available at the retailer from whom the watch was purchased. If you cannot have your watch repaired by the retailer from whom the watch was purchased because you received the watch as a gift, or you moved to a distant place, please contact SEIKO CUSTOMER SERVICE CENTER. The service may also be available on a chargeable basis at other retailers, however, some retailers may not undertake the service.
- If your watch has a protective film for preventing scratches, make sure to peel it off before using the watch. If the watch is used with the film on it, dirt, sweat, dust, or moisture may be attached to the film and may cause rust.
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1 READ FIRST
Handling cautions
ASTRON 3X22 GPS SOLAR
b WARNING
Please note that there is a risk of serious consequences such as severe injury
if the following safety regulations are not strictly observed.
b CAUTION
Please note that there is a risk of minor injury or material damage if the
following safety regulations are not strictly observed.
Immediately stop wearing the watch in following cases:
If the watch body or band becomes edged by corrosion etc. If the pins protrude
from the band.
- Immediately consult the retailer from whom the watch was purchased or SEIKO CUSTOMER SERVICE CENTER.
Keep the watch and accessories out of the reach of babies and children.
Care should be taken to prevent a baby or a child accidentally swallowing the accessories. If a baby or child swallows the battery or accessories, immediately consult a doctor, as it will be harmful to the health of the baby or child.
Do not remove the secondary battery from the watch. - About the secondary battery Power SourceP. 36 Replacement of the secondary battery requires professional knowledge and skill. Please ask the retailer from whom the watch was purchased for replacement of the secondary battery. Installation of an ordinary silver oxide battery can generate heat that can cause bursting and ignition.
Avoid the following places for wearing or keeping the watch:
Places where volatile agents (cosmetics such as polish remover, bug repellent, thinners etc.) are vaporizing
Places where the temperature drops below 5°C or rises above 35°C for a long
time (41°F and 95°F)
Places affected by strong magnetism or static electricity
Places affected by strong vibrations Places of high humidity Dusty places
If you observe any allergic symptoms or skin irritation
Stop wearing the watch immediately and consult a specialist such as a
dermatologist or an allergist.
Other cautions
For adjusting the length of the metallic band, specialized knowledge and
expertise are necessary. Therefore, in such a case, contact the retailer from
whom the watch was purchased. If you attempt to adjust the metallic band,
injury may occur to your hand or fingers, or parts of the band may be lost.
Do not disassemble or tamper with the watch.
Keep the watch out of the reach of babies and children. Extra care should be
taken to avoid risks of any injury or allergic rash or itching that may be
caused when they touch the watch.
When disposing of used batteries, follow the instructions of your local
authorities.
If your watch is of the fob or pendant type, the strap or chain attached to
the watch may damage your clothes, or injure the hand, neck, or other parts of
your body.
Please keep in mind that if a watch is taken off and placed down as it is, the
case back, the band and the clasp will rub against each other possibly causing
scratches on the case back. We recommend placing a soft cloth between the case
back, the band and the clasp after taking off your watch.
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1 READ FIRST
b WARNING Do not use the watch for scuba diving or saturation diving.
The various tightened inspections under simulated harsh environment, which are
usually required for watches designed for scuba diving or saturation diving,
have not been conducted on the water resistant watch with the BAR (barometric
pressure) display. For diving, use watches specifically designed for diving.
b CAUTION
Do not pour running water directly from faucet.
The water pressure of tap water from a faucet is high enough to degrade the
water resistant performance of a water resistant watch for everyday life.
ASTRON 3X22 GPS SOLAR
b CAUTION
Do not turn or pull out the crown when the watch is wet.
Water may get inside of the watch. * If the inner surface of the glass is
clouded with condensation or water droplets
appear inside of the watch for a long time, the water resistant performance of
the watch is deteriorated. Immediately consult the retailer from whom the
watch was purchased or SEIKO CUSTOMER SERVICE CENTER.
Do not leave moisture, sweat and dirt on the watch for a long time.
Be aware of a risk that a water resistant watch may lessen its water resistant
performance because of deterioration of the adhesive on the glass or gasket,
or the development of rust on stainless steel.
Do not wear the watch while taking a bath or a sauna.
Steam, soap or some components of a hot spring may accelerate the
deterioration of water resistant performance of the watch.
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1 READ FIRST
Features
This is a GPS solar watch.
- Unlike navigation equipment, this GPS solar watch is not designed to constantly receive GPS signals from GPS satellites without any operation. This watch receives GPS signals only in the time zone adjustment mode, automatic or manual time adjustment mode.
This watch has the following features.
GPS signal reception
Solar charging Function
The time on the watch can be adjusted to the current time with just one button operation*, anywhere in the world.
- DST (daylight saving time or “summer time”) is set manually
This watch quickly adjusts the time by receiving GPS signals from GPS satellites.
Place where GPS signals can be easily received/Place where GPS signals cannot be received P. 16
This watch responds to all the time zones around the world. Time zone P. 6
When the region or time zone where the watch is used is changed, please carry out operation of “time zone adjustment.”
How to adjust the time zone P. 20
This watch operates by solar charging.
Expose the dial to light to charge the watch. The watch will operate for about
6 months on a full charge.
When the energy stored in the watch runs out completely, it takes time to
fully charge the watch, so please keep in mind to charge the watch regularly.
How to charge the watch P. 14 Standard Charging Time P. 14
ASTRON 3X22 GPS SOLAR
Automatic time adjustment function This watch automatically adjusts the time
in accordance with action patterns during use.
When the watch has sensed sufficient brightness under an open sky, it
automatically receives GPS signals from GPS satellites. This function enables
the watch to automatically adjust the time precisely even while you are using
the watch.
Automatic time adjustment P. 24 * This watch is unable to receive GPS signals
when
the energy stored in the watch is low. Check the charging status P. 13
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1 READ FIRST
GPS satellite
ASTRON 3X22 GPS SOLAR
Mechanism by which the GPS solar watch sets time and date
This is a satellite operated by the United States Department of Defense
(official name is NAVSTAR), and orbits the earth at an altitude of 20,000 km.
Initially, this was a military satellite, but at present, information is
partially disclosed to the public and used in various equipment including car
navigation systems and cellular phones.
The GPS satellite is mounted with a high-accuracy atomic clock with an
accuracy deviation of 1 second per 100,000 years.
Mechanism by which this watch sets the time and date
This watch receives GPS signals from GPS satellites to set the time and date
based on the following information.
· Precise time and date based on the atomic clock
· Time zone information for your current location (The current location is
generally measured using 4 or more GPS satellites, to identify where among the
world’s time zones the watch is located.)
- To receive information about a time zone where you are, it is necessary to adjust the time zone. How to adjust the time zoneP. 20
- Unlike navigation equipment, this GPS solar watch is not designed to constantly receive GPS signals from GPS satellites without any operation. This watch receives GPS signals only in the time zone adjustment mode, automatic or manual time adjustment mode.
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1 READ FIRST
ASTRON 3X22 GPS SOLAR
Time zone
Time zone
Based on Coordinated Universal Time (UTC), the standard time commonly used is
adopted by countries and regions around the world. Standard time is determined
by nations and regions, with “time zone” used to refer to the whole of a
region that uses the same standard time. At present, the globe is divided into
38 time zones (as of January 2019).
DST (Daylight Saving Time)
Depending on the area, DST (Daylight Saving Time) is individually set.
Daylight Saving Time means summer time, which is a system to lengthen daylight
time by advancing 1 hour when daylight time is long in summer. Daylight saving
time has been adopted in about 80 countries, mainly in Europe and North
America. The adoption and duration of daylight saving time vary depending on
the country.
- DST (daylight saving time or “summer time”) in each region may be changed by countries and regions.
Coordinated Universal Time (UTC)
UTC is the universal standard time coordinated through an international
agreement. This is used as the official time for recording time around the
world. The time obtained by adding a leap second to the “International Atomic
Time (TAI)” determined based on the atomic clock around the world and
coordinated in order to compensate for deviations from universal time (UT)
which is astronomically determined is the UTC.
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1 READ FIRST
ASTRON 3X22 GPS SOLAR
The following functions are included
When the region or time zone where the watch is used is changed
Adjust the time zone. The correct time for the current region is shown.
Time zone adjustment P. 19 Time zone P. 6 List of time differences around the
world (for reference) P. 12
To set only the time
The correct time for the set time difference can be displayed by performing
“manual time adjustment”.
How to manually adjust the time P. 22
Los Angeles 7:00 PM on 6th
London 3:00 AM on 7th
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1 READ FIRST
ASTRON 3X22 GPS SOLAR
How to check when the time zone information was configured for your watch
AA0
3X22-0
The case back shows the caliber-case number of your watch.
Caliber/case number
The number to identify the watch type * Display may vary depending on the
model.
By referring to caliber-case number shown on the case back, you will be able
to determine when the time zone data was configured.
For more details, refer to the URL below. https://www.seikowatches.com/global-
en/customerservice/knowledge/
gpstimezonedatainfo
In a region where the time zone has changed after time zone information was
set on your watch, the correct time will not be displayed even if time zone
adjustment is performed through GPS radio reception. Please perform the
following operations to display the proper time.
<To set the time on the product in a region in which the time zone has
changed>
1. Select the current time in the region, using the manual time difference
setting (selection). If DST (daylight saving time or “summer time”) is in
effect, select a time that takes that into account. Please see “About manual
time difference setting (selection)”P. 23 for details.
2. Next, adjust the time by manual time adjustment. For details, please refer
to “Manual time adjustment”P. 21.
3. When using the watch within the same time zone, the correct time will be
displayed after automatic (GPS) or manual time adjustments.
4. When moving from a region where the official time zone has changed to a
different time zone, then back to the region where the official time zone has
changed, carry out the same operations from 1. – 3. as indicated above to
display the correct time in the region where the official time zone has
changed.
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2 CONTENTS
ASTRON 3X22 GPS SOLAR
CONTENTS
1.READ FIRST …………………………………………………………………………………………………… 2
Handling cautions …………………………………………………………………………………………….. 2 Features
…………………………………………………………………………………………………………. 4 Mechanism by which the GPS solar
watch sets time and date ………………………………… 5 Time zone
……………………………………………………………………………………………………….. 6 The following functions are
included …………………………………………………………………… 7 How to check when the time zone
information was configured for your watch …………… 8
2.CONTENTS …………………………………………………………………………………………………….. 9
3.BEFORE USE ……………………………………………………………………………………………….. 10
Names of the parts …………………………………………………………………………………………. 10 About display of
reception results and in-flight mode ( ) ……………………………………. 11 List of time
differences around the world (for reference) ……………………………………….. 12 Check the
charging status ……………………………………………………………………………….. 13 About charging
………………………………………………………………………………………………. 14
4.BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.)
………………………………………………………………………………………………….. 15
Basic operation flow ……………………………………………………………………………………….. 15 GPS signal
reception ………………………………………………………………………………………. 16 To adjust the time zone and
time by GPS signal reception (time zone adjustment) …… 19 To adjust only the
time by GPS signal reception (manual time adjustment) …………….. 21 Setting the
destination time zone while in flight, etc. (manual time difference setting),
and setting/resetting DST (daylight saving time or “summer time”) …………………………
23 Automatic time adjustment ………………………………………………………………………………. 24 When boarding
(in-flight mode ( )) ………………………………………………………………… 25 Leap second (Automatic leap
second reception function) …………………………………….. 26
5.IN CASE OF AN UNUSUAL MOVEMENT OF THE SECONDS HAND …. 28
Seconds hand movement and watch state (energy depletion forewarning function)
…. 28
6.TO PRESERVE THE QUALITY OF YOUR WATCH …………………………………. 29
Daily care ……………………………………………………………………………………………………… 29 Performance and caliber
/ case number …………………………………………………………….. 29 Water resistant performance
……………………………………………………………………………. 29 Magnetic resistance
……………………………………………………………………………………….. 30 Band
…………………………………………………………………………………………………………….. 31 How to use an easy adjust type
clasp ………………………………………………………………… 32 How to use an adjustable three-fold clasp
………………………………………………………….. 33 How to use an adjustable three-fold clasp (Pointed
tip diving type) ………………………… 34 Lumibrite
………………………………………………………………………………………………………. 35 Power Source
………………………………………………………………………………………………… 36 After sales service
………………………………………………………………………………………….. 37
7.TROUBLESHOOTING …………………………………………………………………………………. 38
When the watch is unable to receive GPS signals ……………………………………………….. 38 Adjust
the time under a condition in which the watch is unable to receive GPS signals
(Manual time setting) ………………………………………………………………………………………. 38 When the date or
the position of the hour, minute, or seconds hand is incorrect ………. 40
Troubleshooting …………………………………………………………………………………………….. 43
8.FUNCTION LIST/SPECIFICATIONS …………………………………………………………. 48
Index ……………………………………………………………………………………………………………. 48 SPECIFICATIONS
………………………………………………………………………………………….. 49
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3 BEFORE USE
1
2
- The orientation and design of the display may vary depending on the model.
ASTRON 3X22 GPS SOLAR
Names of the parts
1 Hour hand
2 Seconds hand
3
3 Minute hand
4
4 Button A
5 Crown
6 Date
7 Button B
5
6
7
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3 BEFORE USE
1
ASTRON 3X22 GPS SOLAR
About display of reception results and in-flight mode ( )
1 Display of reception result
Y : Reception successful (8-second position) N : Reception failed (52-second
position) Check the reception result P. 18
2 Display of in-flight mode ( )
Hand position
In-flight mode ( ) status
Display
2
In-flight mode P. 25
3 Display of charging status
3
Hand position
full
middle
low
Display
- The orientation and design of the display may vary depending on the model.
Check the charging status P. 13 How to charge the watch P. 14
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3 BEFORE USE
ASTRON 3X22 GPS SOLAR
List of time differences around the world (for reference)
This is a list of time differences around the world. When performing manual time difference setting (selection), refer to the crown rotation direction.
DST (Daylight Saving Time) has been adopted in countries marked with a H. In the Lord Howe Island time zone in Australia with a I mark, the time is advanced by 30 minutes while DST (Daylight Saving Time) is in effect.
Representative city names… All global time zones
Time difference from UTC: +14 hours ~ 12 hours Time zone adjustmentP. 19
Operation of the crown when manually setting the time difference How to
perform manual time difference setting (selection) P. 23
Turning the crown to the right moves the time forward.
Turning the crown to the left moves the time backward.
City name HLondon HParis/ HBerlin Cairo Jeddah HTehran Dubai Kabul Karachi Delhi Kathmandu Dhaka Yangon Bangkok Beijing Eucla Tokyo HAdelaide HSydney ILord Howe Island
UTC ± hours 0
+1 +2 +3 +3.5 +4 +4.5 +5 +5.5 +5.75 +6 +6.5 +7 +8 +8.75 +9 +9.5 +10 +10.5
City name Nouméa HWellington HChatham Islands Nuku’alofa Kiritimati Baker Island Midway islands Honolulu Marquesas Islands HAnchorage HLos Angeles HDenver HChicago HNew York Santo Domingo HSt. John’s HRio de Janeiro Fernando de Noronha HAzores
UTC ± hours +11 +12
+12.75 +13 +14 -12 -11 -10 -9.5 -9 -8 -7 -6 -5 -4 -3.5 -3 -2 -1
- Information about time differences among regions (time zones) and the implementation of DST (daylight saving time or “summer time”) is as of January 2019.
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3 BEFORE USE
Check the charging status
ASTRON 3X22 GPS SOLAR
Push and release Button B
When Button B is pushed and released, the seconds hand moves, allowing you to check the energy level. We recommend that you check the “energy level” on a regular basis to ensure that the watch does not do into a low energy state.
- GPS signal reception requires a lot of energy. Keep in mind to regularly charge the watch by expose to light. About chargingP. 14
Reception is allowed
Seconds hand display
Charging status
Solution
Reception is not allowed
Seconds hand display
Charging status
Solution
Reception is allowed.
full
Use the watch as it is.
P. 15
The watch is unable To enable reception, charge the watch until the
low
to receive GPS signals, but has
energy level is at least “middle”.
energy to operate. About charging P. 14
middle
Reception is allowed, but keep in mind to charge the watch. P. 15
The movement of the seconds hand
Charging status
Solution
2-second interval movement
5-second interval movement
The energy level is in a very “low” To keep the watch operating and also enable
state.
reception, continue charging the watch until the
- If the energy depletion
energy level is at least “middle”.
forewarning function is
About charging P. 14
activated, the “charging status” 2-second interval movement/5-second interval
cannot be displayed.
movement are brought about P. 28
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3 BEFORE USE
ASTRON 3X22 GPS SOLAR
About charging
How to charge the watch
Expose the dial to light to charge the watch.
To ensure optimal performance of the watch, make sure that the watch is kept sufficiently charged at all times.
Under the following situations, the energy of the watch is likely to be
depleted, resulting in stoppage of the watch:
· The watch is concealed under a sleeve.
· The watch is used or stored under conditions where it cannot be exposed to light for a long time.
- When charging the watch, make sure that the watch is not heated to a high temperature. (The operational temperature range is between -10°C to +60°C (14 ºF and 140 ºF).)
- When first using the watch or starting to use the watch after it has stopped because of the energy depletion, sufficiently charge the watch referring to the table on the page at the right.
Standard Charging Time
Charge the watch using the times below as a guide.
GPS signal reception consumes considerable energy. Expose the watch to light
frequently, and charge the watch so that the energy level is “middle” or
“full”. (If the energy level is “low”, reception will not begin even if GPS
signal reception is operated.)
Check the charging status P. 13
Illumination lx (LUX)
Light source
Condition (Example)
700 3,000 10,000 100,000
Fluorescent light
Fluorescent light
Sunlight Fluorescent
light
Sunlight
General offices
30 W 20 cm
Cloudy day 30 W 5 cm
Sunny day (Under the direct sunlight on a summer day)
From the state where the watch is stopped (not charged)
To fully charged
–
To one-second interval movement
is secured
–
250 hours
9.5 hours
75 hours
3 hours
30 hours
1.5 hours
In the state where the hand moves (the watch is charged) To move for one day
3.5 hours
1 hour
15 minutes
10 minutes
The figures of “Time required for charging the watch to start moving at one- second intervals” are estimations of time required to charge the stopped watch by exposing it to light until it moves at steady one-second intervals. Even if the watch is partially charged for a shorter period, the watch will resume one-second- interval movement. However, it may shortly return to two-second- interval movement. Use the charging time in this column as a rough guide for sufficient charging time.
- The required charging time slightly varies depending on the model.
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4 BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.)
ASTRON 3X22 GPS SOLAR
· When the region or time difference (time zone) where the watch is used has
changed
· To set only the time
Basic operation flow
1. Check the place where GPS signals can be easily received
Place where GPS signals can be easily received/Place where GPS signals cannot
be receivedP. 16
2. Set the time zone and set the time and date < Setting by GPS signal reception >
Place where GPS signals can be easily received
· Receive GPS signals, set the time zone and set the time and date
How to adjust the time zoneP. 20
Outdoors under an open sky with good visibility
· If DST (daylight saving time or “summer time”) is in effect, set the time difference manually
How to perform manual time difference setting (selection)P. 23
Set only the time
How to manually adjust the time P. 22
Place where GPS signals cannot be received
< Manual setting > Confirm time and date displayIncorrect by increments of hours
How to perform manual time difference setting (selection)P. 23
Example: Within a subway station
Time is nearly correct
How to manually set the timeP. 39
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4 BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.)
GPS signal reception
Place where GPS signals can be easily received/Place where GPS signals cannot
be received
ASTRON 3X22 GPS SOLAR
Easy to receive
· Outdoors under an open sky with good visibility
Difficult to receive
· The smaller the sky, the more difficult it is to receive GPS signals. In
addition, it will also be difficult to receive GPS signals, if there is
something that obstructs the GPS signals during reception (in particular,
during time zone adjustment).
Cannot receive
· The sky cannot be seen or only part of the sky can be seen.
· There is something hindering the reception.
Examples: · Between tall buildings · Near wooded area · Station/Airport · Indoors with windows
- GPS signals cannot be received depending on window glass type. Refer to the ” Cannot receive.”
16
Examples: · Indoors without windows · Underground · During passage of a tunnel
· Through special glass with thermal emission shield
effect, etc. · Close to equipment generating noise or performing
wireless communications
4 BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.)
ASTRON 3X22 GPS SOLAR
List of GPS signal reception methods (characteristics of all three types)
Reception method
Features
Number of acquired satellites necessary for reception Time taken for reception
What kind of situation
Time adjustment
Time zone adjustment
Time adjustment
Time zone identification and time adjustment
Display the correct current time for Identify the time zone of your current
the set (selected) time difference location, and display the correct current
time
Leap second data reception
Leap second reception
Ready for leap second data reception and receiving Leap second data P. 26
One unit (to obtain only time information)
Basically more than 4 units (to obtain time information and time zone information)
–
3 seconds to 1 minute
30 seconds to 2 minutes
30 seconds to 18 minutes
This is performed
automatically after
GPS signal reception
To set the watch to the correct time while it is used in the same time zone (time difference)
When the watch is used in a different time zone
(automatic time adjustment, manual time adjustment, or
time zone adjustment)
on or after June 1st
and December 1st.
GPS signal reception Q & A
Q : When the watch is moved to a different time zone, does the watch
automatically display the local time?
A : The watch does not automatically display the local time just by changing
location. If you are in a place where GPS signals can be easily received,
adjust the time zone. The watch automatically displays the local time. When
you are in a place where GPS signals cannot be received, perform manual time
difference setting (selection). How to perform manual time difference setting
(selection)P. 23 (The watch can be set to any time zone (time difference)
around the world.)
Q : Is DST (Daylight Saving Time) automatically changed by receiving GPS
signals? A : Perform time difference setting (selection) manually.
How to perform manual time difference setting (selection)P. 23 (Signals from
GPS satellites do not contain DST (daylight saving time or “summer time”)
information.) Even within the same time zone, some countries or regions may
not follow DST (daylight saving time or “summer time”). List of time
differences around the world (for reference)P. 12
Q : Is it necessary to carry out special operation for years in which a leap
second is added? A : No particular operation is necessary.
As leap second data is received at the same time as GPS signal reception
(automatic time adjustment or manual time adjustment) on or after June 1st and
December 1st, leap seconds are automatically inserted when GPS signals are
periodically received. See “Leap second (Automatic leap second reception
function)”P. 26 for details.
17
4 BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.)
ASTRON 3X22 GPS SOLAR
Check that reception was successful (reception result display)
The reception result (success or failure) for the last GPS radio reception is
displayed for 5 seconds.
1 Press Button A once and then release it
The seconds hand displays the reception result.
Press and then release
2 The result of the reception is displayed
The seconds hand displays the result of the GPS signal reception (time
adjustment or time zone adjustment).
Seconds hand
Seconds hand: Reception result (success/failure)
Result
Successful
Failed
Display
- When Button A is kept pressed, the watch enters the Manual time adjustment operation.
Position Y 8-second position
N 52-second position
- After 5 seconds have elapsed or when Button B is pressed, the watch returns to the time display mode.
When the reception result is Y
· The reception was successful. Use the watch as it is.
When the reception result is N
· Move to the outdoors where GPS signals can be easily received as necessary
to receive GPS signals.
Place where GPS signals can be easily received/Place where GPS signals cannot
be received P. 16
- When approximately four days have elapsed after successful reception, the reception result display becomes “N”.
- Even under a state where GPS signal cannot be received, the watch operates with quartz accuracy (at loss/gain ±15 seconds per month).
When the reception has failed in any way, manually set the time and date.
How to manually set the time P. 39
18
4 BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.)
ASTRON 3X22 GPS SOLAR
To adjust the time zone and time by GPS signal reception (time zone adjustment)
Time zone adjustment
The time zone where you are is localized to adjust the watch to the precise
current time by just one button operation anywhere in the world.
- DST (daylight saving time or “summer time”) is set manually
How to adjust the time zone P. 20 - Failure or success of reception depends on the reception environment. Place where GPS signals can be easily received/Place where GPS signals cannot be receivedP. 16
- Even if reception was successful, DST (daylight saving time or “summer time”) is not set automatically. Please set manually. How to perform manual time difference setting (selection)P. 23
- GPS signal reception consumes considerable energy. Expose the watch to light frequently, and charge the watch so that the energy level is “middle” or “full”. How to charge the watchP. 14 (If the energy level is “low”, reception will not begin even if GPS signal reception is operated.) Check the charging statusP. 13
Precautions on time zone adjustment
When time zone correction is performed near a border between time zones, the
time for the neighboring time difference (time zone) may be displayed. In some
areas the boundaries observed by the watch may not exactly correlate to the
actual time zone markers on the land. This does not indicate a malfunction. In
this case, please set (select) the time difference manually.
How to perform manual time difference setting (selection) P. 23
When the time zone is adjusted while traveling on land, avoid time zone
boundaries to carry out time zone adjustment in the representative cities in
the time zone whenever possible. When using the watch near a time zone border,
be sure to confirm the time and set (select) the time difference manually as
necessary.
19
4 BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.)
ASTRON 3X22 GPS SOLAR
How to adjust the time zone
1 Go to a place where GPS signals can be easily received
Move to the outdoors under an open sky with good visibility.
Place where GPS signals can be easily received/ Place where GPS signals cannot
be received P. 16
2 Continue to press Button B (3 seconds), and then release it when the seconds
hand moves to the 30-second position
The seconds hand will first move to the 30-second position, then the hour and
minute hands will move to the 6-hour position. * All three hands will point to
the 6.
Press for 3 seconds
- If the energy level is “low”, reception will not begin even if GPS signal reception is operated. Expose the watch to light to charge it. How to charge the watchP. 14
- When the seconds hand indicates , reception will not begin even if GPS signal reception is operated. Please reset the in-flight mode ( ). Reset the in-flight mode ( ).P. 25
3 Direct the watch face upward and wait
- Please note that it may be difficult to receive GPS signals while you are in motion. It takes a maximum of 2 minutes to complete reception. * It depends on the receiving conditions.
- To cancel the reception, press Button B.
Press Button B
4 When the seconds hand points to “Y” or “N”, reception is completed
The reception result is displayed for 5 seconds.
When reception was successful, the time and date will be correct.
After the seconds hand has displayed the reception result, the hour, minute,
and seconds hands will return to their normal display.
Reception result display
Y: Successful (8-second position)
N: Failed (52-second
position)
Display
State
When the
Use the watch as it reception result is
is.
displayed as “N”
P. 16
Check that the reception is successful after the watch returns to the time
display mode.
Check that reception was successful (reception result display) P. 18
- The buttons cannot be operated while the hour, minute, and seconds hands and the date are moving.
- If DST (daylight saving time or “summer time”) is in effect, perform settings (selection) manually. How to perform manual time difference setting (selection)P. 23
20
4 BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.)
ASTRON 3X22 GPS SOLAR
To adjust only the time by GPS signal reception (manual time adjustment)
Manual time adjustment
The watch can be set to the correct current time for the set (selected) time
difference. (The time zone will not be changed.) How to manually adjust the
time P. 22
- The correct time for the set (selected) time difference can be displayed by performing manual time adjustment. When the region or time zone where the watch is used has changed, perform time zone adjustment. How to adjust the time zoneP. 20 (As the time and date will match the set time zone when time zone adjustment is performed, it is not necessary to perform manual time adjustment immediately afterward.)
- DST (daylight saving time or “summer time”) is not set automatically. Please perform time difference setting (selection) manually. How to perform manual time difference setting (selection)P. 23
- Failure or success of reception depends on the reception environment. Place where GPS signals can be easily received/Place where GPS signals cannot be receivedP. 16 At the time when the reception was successful by manually adjusting the time, automatic time adjustment may be performed. For details, refer to “Automatic time adjustment”P. 24. GPS signal reception consumes considerable energy.
Expose the watch to light frequently, and charge the watch so that the energy level is “middle” or “full”. How to charge the watchP. 14 (If the energy level is “low”, reception will not begin even if GPS signal reception is operated.) Check the charging statusP. 13
21
4 BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.)
ASTRON 3X22 GPS SOLAR
How to manually adjust the time
1 Go to a place where GPS signals can be easily received
Move to the outdoors under an open sky with good visibility.
2 Continue to press Button A (3 seconds), and then release it when the seconds
hand moves to the 0-second position
The seconds hand will first move to the 0-second position, then the hour and
minute hands will move to the 12-hour position. * All three hands will point
to the 12.
Press for 3 seconds
3 Direct the watch face upward and wait
It takes up to one minute to complete reception.
- The reception time depends on the reception conditions.
- To cancel the reception, press Button B.
Place where GPS signals can be easily received/ Place where GPS signals cannot be received P. 16
- If the energy level is “low”, reception will not begin even if GPS signal reception is operated. Expose the watch to light to charge it. How to charge the watchP. 14
- When the seconds hand indicates , reception will not begin even if GPS signal reception is operated. Please reset the in-flight mode ( ). Reset the in-flight mode ( ).P. 25
Press Button B
4 When the seconds hand points to “Y” or “N”, reception is completed
The reception result is displayed for 5 seconds.
When reception is successful, the time and date will be correct.
After the seconds hand has displayed the reception result, the hour, minute,
and seconds hands will return to their normal display.
Reception result display
Y: Successful (8-second position)
N: Failed (52-second
position)
Display
State
When the
Use the watch as it reception result is
is.
displayed as “N”
P. 16
Check that the reception is successful after the watch returns to the time
display mode.
Check that reception was successful (reception result display) P. 18
When “Y” is displayed but the time is not correct, the time zone or DST
(daylight saving time or “summer time”) settings may not match the current
location. Perform time difference setting (selection) manually as necessary.
How to perform manual time difference setting (selection) P. 23
- The buttons cannot be operated while the hour, minute, and seconds hands and the date are moving.
22
4 BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.)
ASTRON 3X22 GPS SOLAR
Setting the destination time zone while in flight, etc. (manual time difference setting), and setting/resetting DST (daylight saving time or “summer time”)
About manual time difference setting (selection)
When time zone adjustment cannot be performed, the time difference can be set
(selected) manually. Place where GPS signals can be easily received/Place
where GPS signals cannot be received P. 16 Using “List of time differences
around the world (for reference)”P. 12 as a guide, the watch can be matched to
the time and date of your location by setting the time difference (including
the date).
How to perform manual time difference setting (selection)
1 Pull out the crown to the first click
The seconds hand will move to the 0-second position.
012
Pull out to the first click * When in-flight mode is set, the seconds hand
will move to the 42-second position.
2 Turn the crown to set the watch to the time at the destination
Each turn of the crown changes the time in 1-hour increments. * Take note of
which way you turn the crown.
When the time has been set in 1-hour increments, go to operation D
Turning the crown to the right moves the time 1 hour forward.
Turning the crown to the left moves the time 1 hour backward.
- To set the watch to the time at the destination, the time and date must be set. If you turn the crown in the wrong direction, change direction and reset the date and time.
- A date up to about 2 weeks later (or earlier) can be displayed. Note that changing the date too far will result in a date two weeks earlier (or later).
3 Pull out the crown to the second click
When setting the time in 1-hour increments does not set the correct time,
continue with setting the time in 15minute increments. Take note of which
way you turn the crown. By making adjustments 4 times, an adjustment of 1
hour can be made.
Turning the crown to the right moves the time 15 minutes forward.
Turning the crown to the left moves the time 15 minutes backward.
- When in-flight mode is set, the seconds hand will move to the 0-second position.
4 Push the crown back in
The seconds hand returns to the time display mode. * The buttons cannot be
operated while the hour,
minute, and seconds hands and the date are moving.
012
Push back in
23
4 BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.)
Automatic time adjustment
ASTRON 3X22 GPS SOLAR
This watch can be set to the precise current time by automatically receiving GPS signals by exposure to bright light outdoors under an open sky to adjust the time. In addition, when the watch is concealed under a sleeve and the dial is not exposed to sufficient light even if outdoors under an open sky, the watch stores the time of the previous successful manual time adjustment (or time zone adjustment), and automatically starts time adjustment at the same time.
- In a place without good visibility, GPS signals cannot be received. Place where GPS signals can be easily received/Place where GPS signals cannot be receivedP. 16 If the energy is sufficiently charged, automatic reception will be performed every day. The automatic time adjustment is performed at most twice per day (At the time of sensing light, and at the time of previous successful manual time adjustment, it is performed
maximum once for each). Even if the reception fails, it may be performed one more time, according to the conditions. Since only automatic time adjustment by sensing light will be performed under factory default settings, before using the watch for the first time, please succeed the manual time
adjustment during the time zone when you will normally stay for a long time under the open sky where it is easy to receive signals. The time zone is not adjusted in the automatic time adjustment.
When the region where the watch is used is changed, please carry out time zone adjustment. How to adjust the time zone. How to adjust the time zoneP. 20 < When it is difficult to expose to light sufficiently > Even if outdoors under an open sky, when the watch is concealed under a sleeve in winter time, etc., in an area where the daylight hours are short, or when the watch is not likely to be exposed to sufficient light for a long time due to bad weather, the watch is designed to allow for automatic time reception at the time when the manual time adjustment was successful the last time. When the watch is exposed to the operating environment above, automatic time adjustment is likely to be successful by making manual time adjustment successful in time periods where the watch is frequently used in a place where GPS signals can be easily received under an open sky. How to manually adjust the time P. 22 However, as the watch judges to start automatic time adjustment taking into consideration the following conditions, the watch does not necessarily start automatic time adjustment by exposure to bright light or at the time when the manual time adjustment was successful the last time. · Charging status · Past reception status - When the energy level is “low” or when in-flight mode ( ) is set, automatic time adjustment does not work. When the energy level is “low”, expose the watch to light to charge it. How to charge the watchP. 14 Check the charging statusP. 13
- When the energy is reduced, the period for which automatic time adjustment is not performed becomes longer. Keep in mind to charge the watch regularly. * If the time zone adjustment or manual time adjustment is performed before the automatic time adjustment is started, the automatic time adjustment is not performed on that day.
24
4 BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.)
ASTRON 3X22 GPS SOLAR
When boarding (in-flight mode ( ))
In-flight mode ( )
Set to the in-flight mode ( ) where the reception may influence operation of
other electronics devices in an airplane, etc. In the in-flight mode ( ), the
GPS signal reception (time zone adjustment, manual time adjustment, and
automatic time adjustment) does not work.
Set to the in-flight mode ( ).
1 Pull out the crown to the first click
The seconds hand will move, and the currently set inflight mode status
(42-second) / reset (0-second) will be displayed.
< In-flight mode ( ) > The mode is displayed when the crown is pulled out to
the first click.
012
012
Pull out to the first click
- Take note that turning the crown at this time will perform manual time difference setting.
2 Continue to press Button B (3 seconds)
The seconds hand will move to the position.
(42-second)
012
Press for 3 seconds
3 Push the crown back in
012
Push back in
Setting the destination time zone while in flight, etc. (manual time difference setting), and setting/resetting DST (daylight saving time or “summer time”) P. 23
Reset the in-flight mode ( ).
Turn off the in-flight mode when leaving an airplane, etc. If it is not turned
off, the watch will not be able to receive GPS signals. Carry out operation A
to C. In operation B, when the seconds hand points to the 0-second position,
in-flight mode ( ) is reset. * In operation B, the seconds hand shows a
“0-second position” and you can see that the in-flight mode ( ) has been
canceled.
25
4 BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.)
ASTRON 3X22 GPS SOLAR
Leap second (Automatic leap second reception function)
Leap second
The leap second is to compensate for deviations from the universal time (UT)
which is astronomically determined and the “International Atomic Time (TAI).
“1 second” may be added (deleted) once a year or every few years.
Automatic leap second reception function
A leap second is automatically added by receiving “leap second data” from GPS
signals at the time of leap second addition (delete).
- “Leap second data” includes information about future leap second addition and current leap second data.
Receiving Leap Second Data
When GPS signal reception (automatic time adjustment, manual time adjustment,
or time zone adjustment) is performed on or after June 1st and December 1st,
leap second data may be received.
- No particular operation is required.
After the completion of time adjustment (automatic time adjustment or manual time adjustment), up to 18 minutes may be required until receipt of leap second data is complete.
When GPS signals are received under the following conditions, the leap second
data reception is also started.
· GPS signals have not been received for a long time
· Leap second data reception has failed With GPS signal reception, leap second
data reception will be performed again. This will continue until leap second
data reception is successful. Confirm the result (success or failure) of the
leap second data reception. Check whether leap second data reception was
successful P. 27
26
4 BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.)
ASTRON 3X22 GPS SOLAR
Check whether leap second data reception was successful
The reception result (success or failure) of the regular leap second data
reception is displayed for 5 seconds.
1 Press Button A once and then release it
The seconds hand will indicate the reception result. Press
and then release
- When Button A is kept pressed, the watch enters the Manual time adjustment operation.
2 The result of the reception is displayed
The seconds hand displays the result of the GPS signal reception (time
adjustment or time zone adjustment).
Seconds hand: Reception result (success/failure)
Result
Successful
Failed
Display
Position Y 8-second position
N 52-second position
- After 5 seconds have elapsed or when Button B is pressed, the watch returns to the time display mode.
3 Press Button A and then release it while the result of the reception is displayed (for 5 seconds) in step 2
The seconds hand displays the result of the leap second data reception (successful / failed). The minute hand moves to the 32-minute position (LS), indicating that there is a “leap second information reception result”.
Seconds hand
Press and then release
Seconds hand: Reception result (success/failure)
Result
Successful
Failed
Display
When the leap second data reception result is Y (successful)
· The leap second data reception was successful. Use the watch as it is.
When the leap second data reception result is N (failed)
· The leap second data reception, periodically performed, has not been
successful. It will be performed automatically with the next GPS signal
reception (automatic time adjustment, manual time adjustment or time zone
adjustment). Use the watch as it is.
- The leap second data is received on or after December 1st and June 1st.
- Even when the leap second data reception has not been successful, the time is correct until the leap second data is added (deleted).
Move to the outdoors where GPS signals can be easily received as necessary to receive GPS signals.
Place where GPS signals can be easily received/ Place where GPS signals cannot be received P. 16
Position Y 8-second position
N 52-second position
- After 5 seconds have elapsed or when Button B is pressed, the watch returns to the time display mode.
27
5 IN CASE OF AN UNUSUAL MOVEMENT OF THE SECONDS HAND
ASTRON 3X22 GPS SOLAR
Seconds hand movement and watch state (energy depletion forewarning function)
Movement of the seconds hand shows the state of the watch (working functions).
2-second interval movement/5-second interval movement are brought about
When the energy stored in the watch runs low, the energy depletion forewarning
function will work.
When the energy stored in the watch runs low, charge the watch by expose to
light. How to charge the watchP. 14
- When the energy depletion forewarning function works, the watch does not operate even with operation of the buttons and crown. (Be assured that it does not mean a failure)
2-second interval movement
The seconds hand moves at 2-second intervals.
5-second interval movement
The seconds hand moves at 5-second intervals.
State
Restriction on function/display
Solution
· The hour and minute hands and the date
· Reception is not started even with
stop
operation of GPS signal reception.
· Reception is not started even with
· Automatic time adjustment does not work. operation of GPS signal reception.
· Automatic time adjustment does not work.
First, charge the watch by expose to light
until the seconds hand moves at 1-second Charge the watch until the energy level is
intervals.
“middle” or “full”.
How to charge the watch P. 14
Check the charging status P. 13
Charge the watch until the energy level is Carry out time zone adjustment to set the
“middle” or “full”. (If the energy level is
time.
“low”, GPS signals cannot be received.) How to adjust the time zone P. 20
Check the charging status P. 13
The seconds hand stops at the 15-second position/45-second position (Power save function)
When the watch is not exposed to light for a long time, the power save function will work.
Power Save 1
Power Save 2
The seconds hand stops pointing at the 15-second The seconds hand stops pointing at the 45-second
position.
position.
State
· The hour and minute hands and the date stop
Restriction on · function/display ·
The hour and minute hands and the date stop Automatic time adjustment is not performed.
·
(The date becomes “1”)
Reception is not started even with operation of GPS signal reception.
· Automatic time adjustment is not performed.
Cause
When the watch is exposed to a state without receiving an adequate light source for 72 hours or longer.
When the watch is in an insufficient charging state for a long time.
Solution
Charge the watch until the energy level is
·
When the watch is exposed to an adequate light source for more than 5 seconds, or when any button is pressed, it displays the current time again after the seconds hand is rapidly advanced.
“middle” or “full”. Check the charging status P. 13 Set the standard position
of the date. Set the standard position of the date and the
hour and minute hands P. 41 Carry out time zone adjustment to set the time.
How to adjust the time zone P. 20
Power Save 2
- While the watch is being charged, the seconds hand moves at “5-second intervals.” During the “5-second Interval Movement,” the buttons cannot be operated.
- If the ” Power Save 2″ mode is prolonged, the stored power amount drops and the internal current time information stored will be lost.
28
6 TO PRESERVE THE QUALITY OF YOUR WATCH
ASTRON 3X22 GPS SOLAR
Daily care
Performance and caliber / case number
The watch requires good daily care
· Do not wash the watch when its crown is in the extended position. · Wipe
away moisture, sweat or dirt with a soft cloth. · After soaking the watch in
seawater, be sure to wash the watch in clean pure water and wipe it
dry carefully. Do not pour running water directly from a faucet onto the
watch. Put some water into a bowl first, and then soak the watch in the water
to wash it.
- If your watch is rated as “non-water resistant” or “water resistant for daily use,” do not wash the watch. Performance and caliber / case numberP. 29 Water resistant performanceP. 29
Turn the crown from time to time
· In order to prevent corrosion of the crown, turn the crown from time to time.
Press the button once in a while
· Press the button once in a while to prevent corrosion of the button.
The case back shows the caliber and performance of your watch
Water resistant performance
Magnetic resistant performance
AA0
3X22-0
Caliber/case number
· Water resistant performance
· Magnetic resistant performance
Refer to P. 29
Refer to P. 30
· Caliber/case number
The number to identify the type of your watch.
- The above illustration is provided as an example, therefore it may not be exactly the same as your watch.
Water resistant performance
Refer to the table below for the description of each degree of water resistant performance of your watch before using.
Indication on the case back
WATER RESISTANT 1020BAR
Water resistant performance Water resistance for everyday life at 10 (20)-BAR water resistant
Conditions of Use
This watch can be used for swimming and other such sports. The watch is
suitable for diving without an air cylinder.
29
6 TO PRESERVE THE QUALITY OF YOUR WATCH
ASTRON 3X22 GPS SOLAR
Magnetic resistance
Affected by nearby magnetism, a watch may temporarily gain or lose time or stop operating.
- This watch will automatically adjust the position of the hands if the time is rendered incorrect through magnetism, through the automatic hand position alignment function. (P. 40)
This watch has magnetic resistance which complies with ISO “Magnetic resistant watches.”
bCAUTION
Keep the watch more than 5 cm away from magnetic products.
Examples of common magnetic products that may affect watches
Smartphone, cellular phone, tablet terminal (Speaker, magnet of cover)
AC adapter
Bag (With magnet
buckle)
If the watch becomes magnetized and its accuracy deteriorates to an extent
exceeding the specified rate under normal use, the watch needs to be
demagnetized. In this case, you will be charged for demagnetization and
accuracy readjustment even if it happens within the guarantee period.
The reason why a watch is affected by magnetism
The built-in motor is provided with a magnet, which may be influenced by a
strong external magnetic field.
AC-powered shaver Magnetic cooking device
Portable radio (Speaker)
Magnetic necklace
Magnetic health pillow
30
6 TO PRESERVE THE QUALITY OF YOUR WATCH
ASTRON 3X22 GPS SOLAR
Band
The band touches the skin directly and becomes dirty with sweat or dust.
Therefore, lack of care may accelerate deterioration of the band or cause skin
irritation or stain on the sleeve edge.
The watch requires a lot of attention for long usage.
Metallic band
· Moisture, sweat or soil will cause rust even on a stainless steel band if
they are left for a long time.
· Lack of care may result in a rash or cause a yellowish or gold stain on the
lower sleeve edge of shirts.
· Wipe off moisture, sweat or soil with a soft cloth as soon as possible.
· To clean the soil around the joint gaps of the band, wipe it out in water
and then brush it off with a soft toothbrush. (Protect the watch body from
water splashes by wrapping it up in plastic wrap etc.) Clean it off with a
soft cloth.
· Because some titan bands use pins made of stainless steel, which has
outstanding strength, rust may form in the stainless steel parts.
· If rust advances, pins may poke out or drop out, and the watch case may fall
off the band, or the clasp may not open.
· If a pin is poking out, personal injury may result. In such a case, refrain
from using the watch and request repair.
Leather band
· A leather band is susceptible to discoloration and deterioration from
moisture, sweat and direct sunlight.
· Wipe off moisture and sweat as soon as possible by gently blotting them up
with a dry cloth.
· Do not expose the watch to direct sunlight for a long time.
· Please take care when wearing a watch with light-colored band, as dirt is
likely to show up.
· Refrain from wearing a leather band watch other than Aqua Free bands while
bathing, swimming, and when working with water even if the watch itself is
water resistant enforced for daily use (10BAR/20-BAR water resistant).
Polyurethane band
· A polyurethane band is susceptible to discoloration from light, and may be
deteriorated by solvent or atmospheric humidity.
· Especially a translucent, white, or pale colored band easily adsorbs other
colors, resulting in color smears or discoloration.
· Wash out dirt in water and clean it off with a dry cloth. (Protect the watch
body from water splashes by wrapping it up in plastic wrap etc.)
· When the band becomes less flexible, have the band replaced with a new one.
If you continue to use the band as it is, the band may develop cracks or
become brittle over time.
Silicone band
· As for material characteristics, the band is easily dirtied, and may be
stained and discolored. Wipe off dirt with a wet cloth or cleaning tissue.
· Unlike bands of other materials, cracks may result in the band being cut.
Take care not to damage the band with an edged tool.
Notes on skin irritation and allergy
Skin irritation caused by a band may result from various factors such as allergy to metals or leathers, or skin reactions against friction on dust or the band itself.
Notes on the length of the band
Adjust the band to allow a little clearance with your wrist to ensure proper airflow. When wearing the watch, leave enough room to insert a finger between the band and your wrist.
31
6 TO PRESERVE THE QUALITY OF YOUR WATCH
ASTRON 3X22 GPS SOLAR
How to use an easy adjust type clasp
Some bands are provided with an easy adjust type clasp for fine adjustment of
the band’s length.
If the clasp of the watch you purchased is as follows, please refer to the
following instructions.
- The band can be lengthened by up to about 5 mm. This is useful if the band feels too tight or is uncomfortable for some reason.
How to wear the band (Opening and closing the clasp)
1 Lightly press the push buttons to open the clasp.
2 Fasten the clasp by pressing the frame of the buckle.
- Note that pressing the push buttons too firmly (deeply) actuates the adjuster, which lengthens the band.
Push button
Buckle
How to adjust the length of the band
1 You can lengthen the band by up to about 5 mm (2 stages) by firmly pressing the push buttons from both sides to actuate the adjuster.
2 Fasten the clasp by pressing the frame of the buckle.
- Even while the clasp is closed, you can still retract the length of band extended by the adjuster.
32
- The above illustrations are provided as examples. Some details may differ depending on the model.
6 TO PRESERVE THE QUALITY OF YOUR WATCH
ASTRON 3X22 GPS SOLAR
How to use an adjustable three-fold clasp
Some bands are provided with an adjustable three-fold clasp.
If the clasp of the watch you purchased is as follows, please refer to the
following instructions.
How to wear or take off the watch
1 While pressing the push buttons on both sides of the flap, pull the band out of the movable loop and fixed loop. Then open the clasp.
Buckle
Fixed loop Movable loop
Push button Flap
2 Place the tip of the band into the movable loop and fixed loop, and fasten the clasp by pressing the frame of the buckle.
How to adjust the length of the band
1 While pressing the push buttons on both sides of the flap, pull the band out of the movable loop and fixed loop. Then open the clasp.
3 Pull the pin out of an adjustment hole of the band. Slide the band to adjust its length and find an appropriate hole. Place the pin into the hole.
Fixed loop Movable loop
Buckle
Push button Flap
Adjustment hole Pin
2 Press the push buttons again to unfasten the flap.
4 Fasten the flap.
- The above illustrations are provided as examples. Some details may differ depending on the model.
33
6 TO PRESERVE THE QUALITY OF YOUR WATCH
ASTRON 3X22 GPS SOLAR
How to use an adjustable three-fold clasp (Pointed tip diving type)
The rubber bands and some leather bands are provided with an adjustable three-
fold clasp (Pointed tip diving type) of the type where the pointed tip of the
band dives downward as shown in the figure.
If the clasp of the watch you purchased is as follows, please refer to the
following instructions.
How to wear or take off the watch
1 Open the clasp and pull upward by pressing the push buttons on both sides of
the buckle.
Buckle Band
Push button
2 Fasten the clasp by pressing the frame of the buckle.
How to adjust the length of the band
1 Open the band clasp by pushing the buttons on both sides of the clasp.
Buckle Band
Push button
3 Slide the band to the right and left and at an appropriate length, push the pins firmly into the adjustment holes again at those 2 locations.
2 Pull the pins out of the adjustment holes at both locations.
Pin Pin
Adjustment hole
- The above illustrations are provided as examples. Some details may differ depending on the model.
34
6 TO PRESERVE THE QUALITY OF YOUR WATCH
ASTRON 3X22 GPS SOLAR
Lumibrite
If your watch has Lumibrite
Lumibrite is a luminous paint that absorbs the light energy of sunlight and
lighting apparatuses in a short time and stores it to emit light in the dark.
For example, if exposed to a light of more than 500 lux for approximately 10
minutes, Lumibrite can emit light for 3 to 5 hours. Please note, however,
that, as Lumibrite emits the light it stores, the luminance level of the light
decreases gradually over time. The duration of the emitted light may also
differ slightly depending on such factors as the brightness of the place where
the watch is exposed to light and the distance from the light source to the
watch.
- In general, when coming from a place that is bright to a place that is dark, it takes human eyes some time to adapt to the darkness making it difficult to see objects initially. (Dark adaptation) * Lumibrite is luminous paint that stores and emits light, which is harmless to human beings and the environment, containing no toxic materials such as radioactive substances.
Sunlight Indoor (Window-side during daytime)
Condition
Lighting apparatus (40-watt daylight fluorescent light)
Fine weather Cloudy weather
Fine weather Cloudy weather Rainy weather Distance to the watch: 1 m Distance
to the watch: 3 m Distance to the watch: 4 m
Illumination 100,000 lux 10,000 lux More than 3,000 lux 1,000 to 3,000 lux Less than 1,000 lux 1,000 lux 500 lux (Average room luminance) 250 lux
35
6 TO PRESERVE THE QUALITY OF YOUR WATCH
ASTRON 3X22 GPS SOLAR
Power Source
The battery used in this watch is a special secondary battery, which is
different from ordinary batteries. Unlike an ordinary silver oxide battery,
the secondary battery does not require periodic replacement.
The capacity or charging efficiency may gradually lower due to long-term use
or operating environment. In addition, long-term use may shorten the charge
duration due to wear, contamination, lubricant deterioration of mechanical
parts, etc. Request repair when the performance lowers.
bWARNING
Notes on replacing the secondary battery
· Do not remove the secondary battery from the watch. Replacement of the
secondary battery requires professional knowledge and skill. Please ask the
retailer from whom the watch was purchased for replacement of the secondary
battery.
· Installation of an ordinary silver oxide battery can generate heat that can
cause bursting and ignition.
- Overcharge prevention function When the secondary battery is fully charged, the overcharge prevention function is automatically activated to avoid further charging. There is no need to worry about damage caused by overcharging no matter how much the secondary battery is charged in excess of the “time required for fully charging the watch.”
- Refer to “Standard Charging Time”P. 14 to check the time required for fully charging the watch.
bWARNING
Notes on charging the watch
· When charging the watch, do not place the watch in close proximity to an intense light source such as lighting equipment for photography, spotlights or incandescent lights, as the watch may be excessively heated resulting in damage to its internal parts.
· When charging the watch by exposure to direct sunlight, avoid places that easily reach high temperatures, such as a car dashboard.
· Always keep the watch temperature under 60°C. - When the watch has not been charged for a long time If the watch has not been charged for a long time, the watch will be completely discharged and no longer able to be charged. In this case, consult the retailer from whom the watch was purchased.
36
6 TO PRESERVE THE QUALITY OF YOUR WATCH
ASTRON 3X22 GPS SOLAR
After sales service
Notes on guarantee and repair
· Contact the retailer from whom the watch was purchased or SEIKO CUSTOMER
SERVICE CENTER for repair or overhaul.
· Within the guarantee period, present the certificate of guarantee to receive
repair services. · Guarantee coverage is provided in the certificate of
guarantee.
Read carefully and retain it. · For repair services after the guarantee period
has expired, if the functions of the watch can be
restored by repair work, we will undertake repair services upon request and
payment.
Replacement with functional parts
· Normally, the warranty period for this watch’s replacement parts is a
standard 7 years. Replacement parts are parts for which repair is necessary to
maintain the time function.
· Please keep in mind that if original parts are not available, they may be
replaced with substitutes whose outward appearance may differ from the
originals.
Inspection and adjustment by disassembly and cleaning (Overhaul)
· Periodic inspection and adjustment by disassembly and cleaning (overhaul) is
recommended approximately once every 3 to 4 years in order to maintain optimal
performance of the watch for a long time. According to use conditions, the oil
retaining condition of your watch mechanical parts may deteriorate, abrasion
of the parts may occur due to contamination of oil, which may ultimately lead
the watch itself to stop. As the parts such as gasket may deteriorate, water-
resistant performance may be impaired due to intrusion of perspiration and
moisture. Please contact the retailer from whom the watch was purchased for
inspection and adjustment by disassembly and cleaning (overhaul). For
replacement of parts, please specify “SEIKO GENUINE PARTS.” When asking for
inspection and adjustment by disassembly and cleaning (overhaul), make sure
that the gasket and push pin are also replaced with new ones.
· When your watch is inspected and adjusted by disassembly and cleaning
(overhauled), the movement of your watch may be replaced.
37
7 TROUBLESHOOTING
ASTRON 3X22 GPS SOLAR
When the watch is unable to receive GPS signals
Points to be checked
When the watch does not start receiving or is unable to receive GPS signals
even with operation of GPS signal reception, the following can be considered.
Reception is not started even with operation of GPS signal reception (time
zone adjustment/manual time adjustment).
· Confirm the energy level and in-flight mode.
Reception is not allowed
Operation
Charging status Push Button B and release When the energy level is “low”, the seconds hand will indicate the 10-second position.
In-flight mode ( )
Pull out the crown to the first click During in-flight mode ( ), the seconds
hand will indicate the 42-second position.
Display
Solution
Charge the watch by exposure to light until the indicator hand points to the
“middle” position or “full” position.
How to charge the watch P. 14
Reset the in-flight mode ( ). Reset the in-flight mode ( ). P. 25
Reception is not possible even with operation of GPS signal reception (time
zone adjustment/manual time adjustment) (The reception result is displayed as
“N.”)
· Move to a place where GPS signals can be easily received. Place where GPS
signals can be easily received/Place where GPS signals cannot be receivedP. 16
The seconds hand stops at the 45-second position before the reception is
completed (The watch enters the power save 2 state)
· If GPS signal reception is performed under low temperatures (0°C or less) in
a state where the charging capacity and/or charging efficiency are lowered,
the reception will be stopped, and the watch may enter the power save 2 state.
GPS signal reception consumes a significant amount of energy. Keep in mind to
charge the watch regularly by exposure to light. How to charge the watchP. 14
If this occurs frequently, consult the retailer from whom the watch was
purchased.
Adjust the time under a condition in which the watch is unable to receive GPS
signals (Manual time setting)
Manual time setting
When a problem cannot be solved even by carrying out the “Points to be
checked”, or time is gained or lost under a condition in which the watch is
unable to receive GPS signals and the watch is unable to receive GPS signals
continuously, set the time manually.
38
7 TROUBLESHOOTING
ASTRON 3X22 GPS SOLAR
How to manually set the time
· When using the watch again under a condition in which the watch is able to
receive GPS signals, receive GPS signals to set the time.
· When adjusting the time, the date will also be adjusted.
1 Pull out the crown to the second click
The seconds hand will move to the 0-second position.
012
Pull out the crown to the second
click
2 Press Button B continuously for 6 seconds, then release when the seconds hand moves to the 0-second position
- 3 seconds after pressing Button B, the seconds hand will move to the 18-second position. Please continue pressing the button.
The seconds hand moves to stop at the 0-second position. The watch enters the manual time setting mode.
012
Press for 6 seconds
- When the watch enters the manual time setting mode, the reception result will be displayed as “N”, since the reception results data will be lost.
3 Turn the crown to set the time
Turn the crown clockwise to advance the time.
Turn quickly to move continuously. Turn again to stop moving.
Turn the crown counterclockwise to set back the time.
-
When it has moved continuously for 12 hours, it will stop. Turn the crown to continue setting.
-
The point in which the date changes is at 0:00 AM (12:00 PM). Set the time taking into consideration AM or PM.
-
Even if GPS signals cannot be received, the watch can be used with the same accuracy as a normal quartz watch. (at loss/gain ±15 seconds per month on average) * If the watch receives GPS signals after manual time setting, it displays the received time.
4 Push the crown back in (simultaneously with a time signal)
Operation has been completed. The watch resumes its normal movement.
012
Push back in
39
7 TROUBLESHOOTING
ASTRON 3X22 GPS SOLAR
When the date or the position of the hour, minute, or seconds hand is incorrect
Points to be checked
The preliminary position is misaligned due to the following reasons.
Reception was successful (the reception result is displayed as “Y”), but time
has gained or lost.
· The set time difference (including DST (daylight saving time or “summer
time”)) may differ. When the time difference setting differs from the current
location, set the time difference through one of these operations. When in a
location with good reception How to adjust the time zoneP. 20 When in a
location with no reception How to perform manual time difference setting
(selection)P. 23
· Automatic time adjustment may not get activated for a few days. Automatic
time adjustmentP. 24 The automatic time adjustment function is unlikely to be
activated due to low energy stored in the watch or depending on the
environment. To immediately adjust the time, refer to “How to adjust the time
zone”P. 20.
Preliminary position
When the time and date are not correct even after signal reception was
successful, the standard position may be incorrect.
Strong impact such as dropping or hitting
Things around you which generate magnetism Examples of common magnetic products that may affect watchesP. 30
When comparing the state of “Misaligned Preliminary Hand Position” to that of a weight scale, it is like “a scale which is unable to display the correct weight because its needle is not set to the zero position before weighing.”
Setting the standard position of the hour, minute, and seconds hands
(automatic hand position alignment function)
The “automatic hand position alignment function” automatically adjusts the
hour, minute, and seconds hands when the standard positions are incorrect.
The automatic hand position alignment function acts once per 12 hours for the
hour hand (at noon and midnight), once per hour for the minute hand, and once
per minute for the seconds hand.
- This function works when the preliminary hand position is misaligned due to external factors such as strong impact or magnetic influence. It does not work to adjust accuracy of the watch or slight misalignment which may occur during the manufacturing process.
- The standard positions of the hour and minute hands can be adjusted manually. Set the standard position of the date and the hour and minute handsP. 41
Setting of the standard position of the date
As the standard position of the date is not adjusted automatically, it must be
set manually. Set the standard position of the date and the hour and minute
hands P. 41
40
7 TROUBLESHOOTING
ASTRON 3X22 GPS SOLAR
Preliminary position of this watch
The preliminary position of the date is “1” (1st). The preliminary position of
the hour/minute hands is “12:00 AM”.
Set the standard position of the date and the hour and minute hands
1 Pull out the crown to the second click
2 Continue to press Button B (3 seconds)
The seconds hand will move to the 0-second position.
The watch enters the mode for setting the standard position of the date.
012
Pull out the crown to the second
click
012
Press for 3 seconds
- During movement of the date, the buttons cannot be operated.
The seconds hand stops at the 18-second position. The date moves, and stops when it indicates the standard position.
3 Turn the crown to adjust the date to “1”
Adjust so that the numeral “1” appears in the center of the date window. * If
“1” is displayed, go to operation D
Turn the crown clockwise to advance 1 step.
Turn quickly to move continuously. Turn again to stop moving.
Turn the crown counterclockwise to set back 1 step.
41
7 TROUBLESHOOTING
ASTRON 3X22 GPS SOLAR
4 Press Button B and then release it
The watch goes into the preliminary position setting mode of the hour and
minute hands.
012
Press and then release The seconds hand stops at the 0-second position.
5 Continue to press Button A (3 seconds)
The hour/minute hands move, and stop at “12:00 AM”.
Press for 3 seconds
6 Push the crown back in
The watch exits the mode to adjust the preliminary position, and the seconds
hand and the hour/minute hands start moving.
012
012
Push back in
7 Set the time by receiving GPS signals
When you are in a place where GPS signals can be easily received, adjust the
time zone. How to adjust the time zone P. 20
When operations A – F are complete, be sure to set the time.
When you are in a place where GPS signals cannot be received Set the time
difference and date manually How to perform manual time difference setting
(selection) P. 23 Manually set the time How to manually set the time P. 39
When the time is set, operation is completed.
42
7 TROUBLESHOOTING
Troubleshooting
ASTRON 3X22 GPS SOLAR
Troubleshooting
Possible causes
Solutions
The seconds hand moves at 2-second
Charge the watch fully until the energy level is “middle” or “full”.
intervals.
Be careful not to conceal the watch under a sleeve, etc., while wearing
The energy depletion forewarning function is activated. (P. 28)
it.
If the seconds hand moves at 2 or 5-second intervals while you wear the watch When taking off the watch, place it in as bright a location as possible.
The seconds hand moves at 5-second every day, the watch is in a condition where it cannot acquire sufficient light,
intervals.
for instance, the watch is concealed under a long sleeve shirt.
middle
Hand Movement
The stopped seconds hand pointing to the 15-second position started operating.
The power save function 1 has been activated. (P. 28) When the watch has not been exposed to sufficient light continuously, the power save function 1 to limit energy consumption is automatically activated.
When the watch is exposed to light, the hand will rapidly advance and return to the current time. When the watch returns to the current time, use it as is. (This is not an abnormal movement.)
The stopped seconds hand pointing to The power save function 2 has been activated. (P. 28)
the 45-second position started
When the watch is not sufficiently charged for a certain period of time, the
operating.
power save function 2 is automatically activated.
Charge the watch fully until the energy level is “middle” or “full”. After that, when the time is incorrect, adjust the time zone as necessary.
The watch hands advance rapidly The power save function has been activated. (P. 28)
unless a button is pressed. After the The automatic hand position alignment function was activated.
rapid advancement is completed, the When the hand positions deviate to display incorrect time as a result of external No operation is needed (this is not an abnormal movement.)
watch resumes its normal 1-second influences, etc., the watch automatically corrects the hand misalignment by
interval movement.
the automatic hand position alignment function.
Reference pages
P. 13 P. 14
P. 13 P. 14 P. 19 – 20
–
43
7 TROUBLESHOOTING
ASTRON 3X22 GPS SOLAR
Troubleshooting
Possible causes
The charging status display is “low”. (P. 11) * The energy level can be seen
by pressing and
releasing Button B.
Solutions
Charge the watch sufficiently until the charging status is displayed as the
“middle” position or “full” position.
Reference pages
middle
P. 13
GPS signal reception
Reception is not started even with operation of time zone adjustment/ manual time adjustment
The in-flight mode ( ) has been set. (P. 25)
- In-flight mode ( ) can be checked by pulling the crown out to the first click.
GPS signals cannot be received even
by carrying out GPS signal reception (The reception result is displayed as
You are in a place where GPS signals cannot be received. (P. 16)
“N”.)
Reception is possible (reception result display becomes “Y”), but the time and A time difference from that of the current location is set.
date are not accurate (when it is
understood as a reception result after
time adjustment)
The setting for the time difference (including DST (daylight saving time or
“summer time”)) does not match the time of the current location.
After relocation from a place under restriction on use of GPS signals (in an
airplane, etc.), reset the inflight mode ( ).
Receive GPS signals in a place where GPS signals can be easily received.
Check the time difference (time) setting. Reset the time difference if
different from the time of the current location. · When you are in a place
where GPS signals can be easily received How to adjust the time
zoneP. 20 · When in a location with no reception How to perform manual time
difference setting (selection)
P. 23 Reset the time difference if different from the time of the current
location. How to perform manual time difference setting (selection)P. 23
P. 25
P. 16
P. 20 P. 23 P. 23
44
7 TROUBLESHOOTING
ASTRON 3X22 GPS SOLAR
GPS signal reception
Troubleshooting
Possible causes
The setting for the time difference (including DST (daylight saving time or
“summer time”)) does not match the time of the current location.
Solutions Reset the time difference if different from the time of the current location. How to perform manual time difference setting (selection)P. 23
Reference pages P. 23
Reception is possible (reception result
display becomes “Y”), but the time and
date are not accurate (when it is
The positions of the hands are misaligned due to external influences.
understood as a reception result after The standard positions of the hands are incorrect.
time zone adjustment)
Preliminary positionP. 40
<Hour/minute hand misalignment> The automatic hand position adjustment
function is activated to automatically adjust the positions. Please use the
watch as it is. The automatic hand position alignment function is activated
once a minute for the seconds hand, once an hour for the minute hand, and once
every 12 hours for the hour hand.
If the hands are not corrected, refer to “Set the standard position of the
date and the hour and minute hands” and perform the operations.
When misalignment of the hand is not adjusted even with operation of 2,
consult the retailer from whom the watch was purchased.
P. 40 P. 41
The reception result is displayed as “Y”, but the time is gained or lost by
one to two seconds. The automatic time adjustment function is not activated
every day
Automatic reception is not activated.
The automatic time adjustment function has not been activated for a few days. When energy is insufficient, the automatic time adjustment may operate only once every 3 days.
The energy stored in the watch is insufficient. Conditions to activate the automatic time adjustment function are not prepared.
Sufficient energy is necessary to activate the automatic time adjustment function every day. Keep in mind to frequently expose your watch light to charge its battery. The automatic time adjustment is automatically activated by exposure to bright light when you are in a place that easily receives GPS signals.
While the watch has a function that automatically starts receiving when exposed to light, it also has a
function that activates “automatic time adjustment” at the time that “manual time adjustment” was last
The watch is not in an environment where GPS signals can be received at the moment when the watch is exposed to light.
successful, even in environments that are not exposed to light. Normally, we recommend that, to succeed with manual time adjustment, do it at a specific time, at which you think you will be in an environment that can receive GPS signals. Automatic time adjustment function judges the situation.
Thereby the automatic time adjustment function gets activated even in the case of not been able to
receive light.
P. 24 P. 24
P. 22
45
7 TROUBLESHOOTING
ASTRON 3X22 GPS SOLAR
Troubleshooting
Possible causes
Solutions
Reference pages
The automatic hand position alignment function is activated to automatically adjust the position.
The seconds hand position indicating the reception result is incorrect
The standard position of the seconds hand is incorrect. (This can occur when the position of the seconds hand is incorrect due to external influences.) Preliminary positionP. 40
Please use the watch as it is. The automatic hand position alignment function is activated once a minute for the seconds hand. When misalignment of the hand is not adjusted, consult the retailer from whom the watch was
purchased.
P. 40
Misalignment of time and hands
The watch temporarily gains or loses time.
If the energy stored in the watch is insufficient, the automatic time
adjustment function may be activated The automatic time adjustment function
has not been activated for a few days. once in 3 days.
To adjust the time immediately, carry out “manual time adjustment.”
The watch received an incorrect time due to external factors (erroneous reception).
Receive GPS signals in a place where GPS signals can be more easily received. Adjust the time zone as necessary.
P. 24 P. 22
P. 16 P. 20
If the watch is returned to a normal temperature place, the accuracy will be
recovered. The watch is left in an extremely high or low temperature place for
a long time. If the time is incorrect after that, manually adjust the time as
necessary.
If the watch is not recovered, consult the retailer from whom the watch was
purchased.
P. 22
Charging the solar battery
Misalignment of date
The time is gained (lost) 1 hour
The setting for the time difference (including DST (daylight saving time or “summer time”)) does not match the time of the current location.
The stopped watch was exposed to an
adequate light for longer than the time required to fully charge the watch, however, it does not resume its normal
The amount of exposed light is too weak. The time for charging the watch is not sufficient.
1-second interval movements.
The seconds hand is stopped even when the watch is charged for longer The watch was not charged for a long time and has been discharged than the time required to fully charge completely. the watch
After the reception is successful, the time is correct but the date is incorrect.
The preliminary position of the date is out of alignment. This problem occurs when the preliminary position of the date is out of alignment due to external influence etc.
Reset the time difference if different from the time of the current location.
How to perform manual time difference setting (selection)P. 23 The time
required for charging the watch depends entirely on the amount of exposed
light the watch receives. Refer to “Standard Charging Time” to charge the
watch.
Contact the retailer from whom the watch was purchased.
Adjust the preliminary position of the date to the correct position “1” (the
first day of a month).
P. 23 P. 14
– P. 41 – 42
46
7 TROUBLESHOOTING
ASTRON 3X22 GPS SOLAR
Troubleshooting
The crown or buttons cannot be operated.
Operation
You get lost in the middle of the operation.
Other trouble Blur in the display persists.
Possible causes The stored electric power is running short. Date is moving
right after a setting is carried out by the crown or button operation.
–
Solutions Sufficiently charge the watch until it starts moving at 1-small
second intervals.
Wait without doing anything. After the date stops, the crown and buttons can
be operated.
When the crown is pulled out Push the crown back in. The seconds hand will
move in at most 3 minutes. After that, restart operation. When the crown is
not pulled out Press Button B. The seconds hand will move in at most 1 minute.
After that, restart operation.
A small amount of water has got inside the watch due to deterioration of the gasket, etc.
Consult the retailer from whom the watch was purchased.
Reference pages P. 14 –
–
–
–
47
8 FUNCTION LIST/SPECIFICATIONS
ASTRON 3X22 GPS SOLAR
Index
Functions to adjust the time
GPS signal reception P. 16
Time zone adjustment
This function receives signals from GPS satellites,
function………………………………identifies the time zone of the current location with one
P. 19
button operation, and displays the correct current time.
Use this when traveling to a region in a different time zone.
- DST (daylight saving time or “summer time”) is set manually
Manual time adjustment This function receives signals from GPS satellites and
function………………………………displays the correct current time of the set time difference
P. 21
(time).
Use this to set the correct time that is normally used.
Automatic time adjustment… This function determines suitable timing inside the watch
P. 24
for receiving signals from GPS satellites, and
automatically begins reception of signals.
It displays the accurate current time for the set time
difference.
Manual time difference
This function enables changing of the time difference. Also
setting (selection)……………….use this function to set DST (daylight saving time or
P. 23
“summer time”).
Functions to charge
Solar Charging Function……..The watch converts light to electrical energy and charges
P. 14
the battery, using the solar cell beneath the dial. The watch
will operate for about 6 months on a full charge.
Charging status display
Roughly displays the energy charged in the watch. Also
function………………………………shows whether the watch is able to receive GPS signals.
P. 13
Power Save Function…………. The Power Save mode can be activated in order to reduce
P. 28
unnecessary energy consumption when the watch is left
without an adequate light source.
48
8 FUNCTION LIST/SPECIFICATIONS
Function for reception
In-flight mode ( P. 25
)………………Function to prevent the GPS signal reception function from working. Set this mode when boarding an airplane, etc.
Reception result display Displays the latest reception result (success/failure). function……………………………… P. 18
Other functions
Automatic hand position Automatically corrects misalignment when the hands are
alignment function………………misaligned due to external factors such as magnetic
P. 40
influence.
Automatic leap second
Automatically receives leap second data when leap
reception function……………… second data reception is necessary.
P. 26
ASTRON 3X22 GPS SOLAR
SPECIFICATIONS
1. Basic function
Basic watch (hour, minute, and seconds hands), date display
2. Frequency of crystal 32,768 Hz (Hz = Hertz … Cycles per second) oscillator
3. Loss/gain (monthly rate)
Loss / gain ±15 seconds on a monthly rate (When the watch is used without an automatic time setting by receiving GPS signal and when it is worn on the wrist within a normal temperature range between 5°C and 35°C (41°F and 95°F)).
4. Operational temperature range
Between -10°C and +60°C (14°F and 140°F)
5. Driving system
Step motor type: Basic watch (hour, minute, and seconds hands), date
6. Power source
Secondary battery, 1 piece
7. Duration of operation About 6 months (on a full charge, without power save function)
- If the Power Save is activated after it is fully charged, the watch continues to run for approximately 2 years at maximum.
8. GPS signal reception function
Time zone adjustment, manual time adjustment, automatic time adjustment
- Between reception and the next reception, the watch operates with the above quartz precision
9. IC (Integrated Circuit) Oscillator, frequency divider and driving circuit
C-MOSIC, 4 pieces * The specifications are subject to change without prior
notice due to product improvements.
Declaration of Conformity
49
Copyright ©2019 by SEIKO WATCH CORPORATION
References
- Knowledge | Seiko Watch Corporation
- Precautions on use of GPS solar watch in a region where the official time zone is changed | Seiko Watch Corporation
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