SEIKO BSB7B24 Watch User Manual
- June 6, 2024
- Seiko
Table of Contents
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.
Keep this manual handy for easy reference.
- Length adjustment service for metallic bands is available at the retailer from whom the watch was purchased or 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.
About This Product
Handling cautions
WARNING
To indicate the risks of serious consequences such as severe injuries unless
the following safety regulations are strictly observed.
-
Immediately stop wearing the watch in the 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 from 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.
※ Immediately consult the retailer from whom the watch was purchased or SEIKO CUSTOMER SERVICE CENTER.
CAUTIONS
To indicate the risks of light injuries or material damages unless the
following safety regulations are strictly observed.
-
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℃ or rises above 35 ℃ for a long time
○ 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
○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.
Features
This solar drive and the radio-controlled watch are equipped with a radio signal adjustment function.
- The watch is operated by using “electric energy” which is converted from the light received by the solar panel.
- This watch displays the precise time by receiving radio signals conveying time information. It can receive official standard frequencies from Japan (from either of two transmitting stations), the People’s Republic of China, and the United States of America.
■ Radio Signal Receiving Function ････････→ pages 94| This watch adjusts the
time and the date precisely by automatically receiving radio signals daily.
In addition, radio signals can be forcibly received with manual operation.
This watch can receive official standard radio signals from Japan (from 2
transmitting stations), China, and the United States (the transmitting station
for receiving radio signals can be selected using the time zone adjustment
function).
---|---
■ Display Function of Radio Signal Reception Level ････→ page137| The movement
of the second hand indicates the radio signal reception level during radio
signal reception attempts.
■ Display Function of Radio Signal Reception Results in ･･→ page 102| The
movement of the second hand indicates radio signal reception results (Yes/No).
■ Time Zone Adjustment Function… (Selecting Transmitting Station) → pages 104
– 109| This watch can display local time around the world by setting the
appropriate time zone. In addition, setting the time zone enables the watch to
receive official standard radio signals to set the time if the watch is worn
in a radio signal reception range.
■ Solar Charging Function… → pages 110 -111| A solar cell underneath the dial
converts any form of light into electrical energy to charge it. Once fully
charged, the watch continues to run for approximately six months.
■ Energy Depletion Forewarning Function… → page 112| The movement of the
second hand indicates that the battery should be charged.
■ Power Save Function…→ page 113| This watch is equipped with a function that
can suppress energy consumption when it is left without receiving an adequate
light source for a certain length of time.
■ Automatic Hand Position Alignment Function…
→ page 142| When the hand positions display an incorrect time as a result of
external influences such as magnetism, the watch automatically corrects the
hand misalignment.
Display and button operation
Button A
【Reception result confirmation】→page 102
【Manual reception】→page 136
【Time zone adjustment】→page 106
【Manual time and date setting】→page 138
Crown
First, click 【Manual date setting mode】→page 140
Second click 【Manual time setting mode】→page 138
※ In the case of a screw lock type crown, when the crown is unlocked, it is at
the 0-click position.
Button B
【Time zone adjustment mode (setting the time to a local time abroad)】→ page
106
Reception Level Display
【manual reception】
H ･･･ High reception level（50second position）
L ･･･ Low reception level（40second position）
N ･･･ Unable to receive radio signals（20second position）
※ “About the reception level display” refers to page 137
Reception Result Display
【Confirmation of reception result】
Y ･･･ Reception Successful（10second position）
N ･･･ Reception Failed（20second position）
※ “Confirm reception result” refers to page 102
※ Positions of the above displays may differ depending on the model.
How to use Button A and B
Buttons A and B are recessed in the watchcase to improve the design and to prevent erroneous operations. Please refer to the following figures for how to press the buttons.
※ The button shape varies depending on the design.
First, press Button B, and press Button A while pressing Button B so as to
press them successfully.
■ When pressing Buttons A and B at the same time
Make sure to confirm “How to use Buttons A and B” as shown above before
pressing the buttons.
-
Both Buttons A and B have a hollow
Press the buttons using an object with a long tapered tip holding the watch as shown in the figure so that the watch does not move. -
Button A does not have a hollow, and Button B has a hollow
Press Button A with your finger and Button B using an object with a long tapered tip.
※ P r ess the buttons on a soft cloth or the like before operation in order to prevent damage to the watch.
Crown
There are two types of crowns, a normal crown, and a screw-lock crown. Check the crown on your watch.
※ If your watch has a screw-lock crown, the crown screws into the watch to
prevent malfunction and increase water resistance.
※ Be careful not to screw the crown in by force as it may damage the slots of
the crown.
Before use
-
Checking the charging status
When the movement of the secondhand shows an energy depletion state, the battery requires charging.
※ If the second-hand does not move at one-second
intervals even after fully charging the battery → At Trouble on page 150 -
Checking the time and date
※ The hands of this watch cannot be moved by turning the crown. So when adjusting the time, refer to the following pages regarding the procedures.
※ When
the watch is not displaying the precise time and date even after successfully
receiving a radio signal → In this case, refer to Misalignment of the time and
hands-on page 152 and Misalignment of the date on page 154.
Setting the time and date by receiving a radio signal
■ Mechanism of radio signal reception
The radio-controlled watch displays the precise time and date by automatically
receiving and synchronizing itself with the radio signal of an official
standard frequency.
Time signal transmitted by a standard frequency is based on a super-accurate “Cesium Atomic Clock” that may have a 1-second loss or gain per one hundred thousand years.
■ Automatic reception and manual reception
This watch sets the time and date by automatically receiving a radio signal
at a fixed time.
-
Automatic reception
This watch automatically receives a radio signal at 2:00 AM.
※ If the watch fails to receive receives a radio signal at 2:00 AM, it will attempt to receive a radio signal at 3:00 AM. If it fails again, it will attempt to receive a radio signal at 4:00 AM.
When receiving radio signals, place the watch in a place where it can easily receive a radio signal. -
Manual reception
When this watch cannot automatically receive a radio signal due to a difficult receiving environment, it is possible to receive them arbitrarily at any time.
How to conduct manual reception → pages 136-137
※ When setting a time zone for regions other than the radio signal reception
range, the radio signal reception function will not work.
Check the setting of the time zone → How to set the time zone (Selecting
transmitting station) on pages 106-107
※ Radio signal reception results depend on a receiving condition. →
Environments in which it is difficult to receive a radio signal on page 100
※ This watch is unable to receive radio signals outside a reception range →
Radio signal reception range indication on pages 96-98
※ When the watch is not displaying the precise time and date even after
successfully receiving a radio signal → At Trouble: Misalignment of the time
and hands-on page 152, Misalignment of the date on page 154.
About reception conditions
■ Radio signal reception range: In Japan (JJY)
The reception range from each transmitting station is approximately 1,000 km
(1,000 km radius of each station).
JJY is operated by the National
Institute of Information and Communications Technology （NICT）.
JJY is transmitted from two stations in Japan. Each station transmits JJY
at a different frequency.
Fukushima （Ohtakadoya- Yama transmitting station: 40 kHz）
Kyushu （Hagane-Yama transmitting station: 60 kHz）
※ NICT: National Institute of Information and Communications Technology
※ Whether the watch succeeds in receiving radio signals or not depends on the
receiving conditions.
Refer to “Environments in which it is difficult to receive a radio signal” on
page 100.
■ Radio signal reception range: In China (BPC)
The reception range from the transmitting station is approximately 1,500 km
(1,500 km radius of the transmitting station).
BPC is operated by NTSC.
Shangqiu National Time Service Center
Frequency: 68.5kHz
※NTSC: National Time Service Center
※ The watch may be able to receive radio signals outside a reception range if
the receiving conditions are favorable.
※ The watch may fail to receive radio signals depending on the reception
conditions (weather, geographic locations, radio disturbances such as tall
buildings, and orientation of the watch).
Environments in which it is difficult to receive a radio signal on page 100.
■ Radio signal reception range: In the United States (WWVB)
The reception range from the transmitting station is approximately 1,500 km
(1,500 km radius of Fort Collins radio station). There are four time zones
within the reception range.
WWVB is operated by NIST.
Fort Collins transmitting station
Frequency: 60 kHz
※NIST: National Institute of Standards and Technology
※ The watch may be able to receive radio signals outside a reception range if
the receiving conditions are favorable.
※ The watch may fail to receive radio signals depending on the reception
conditions (weather, geographic locations, radio disturbances such as tall
buildings, and orientation of the watch).
Environments in which it is difficult to receive a radio signal on page 100.
■ To enable the watch to easily receive a radio signal
Place the watch where it can receive radio signals more easily, such as by the
window.
In order to secure a stable radio signal reception, keep the watch stationary
without changing the direction of the watch or tilting it during radio signal
reception.
■ Environments in which it is difficult to receive a radio signal
| 
---|---
• Close to home electrical appliances such as TV’s, refrigerators, or air
conditioners
• Close to OA devices such as mobile phones, personal computers, or fax
machines
• Close to steel desks or other furniture made of metal| • In places
generating radio interference, such as construction sites or places with heavy
traffic.
| 
• Close to overhead power lines, TV stations, train cables.| • Inside a
building, between tall buildings, underground.
• Inside a vehicle, train, or airplane
Avoid putting the watch in such places when it receives radio signals.
NOTICE
-
The watch may display the wrong time if it fails to receive radio signals properly because of interference. The watch may also fail to receive radio signals properly depending on the location or radio wave receiving conditions. In this case, move the watch to another place where it can receive radio signals.
-
When the watch is out of reception range, its accurate quartz movement will continue to keep the time.
-
The time signal transmission may be stopped during maintenance of the facilities of each transmitting station or because of a lightning strike. In such a case, see each station’s website for further information or contact SEIKO CUSTOMER SERVICE CENTER.
-
Websites of transmitting stations （as of November 2007） Japan: NICT （Japan Standard Time Group）http://www.jjy.nict.go.jp/
China: NTSC http://www.ntsc.ac.cn
The United States of America: NIST http://www.boulder.nist.gov/timefreq/stations/wwvb.htm -
SEIKO CUSTOMER SERVICE CENTER: 0120-612-911 （toll-free in Japan）
How to check the reception status
■ How to display the reception results
This watch displays the latest reception results (Yes/No) of a radio signal for five seconds.
- Press Button A once and then release it.****
| ※ How to
use buttons A and B → page 90
※ When Button A is kept pressed for three seconds or longer, the secondhand starts to move to the “Zero Second Position,” and then the watch switches to the Manual Reception Mode. In this case, press Button A again to display the time.
---|--- - The second hand indicates the reception results.****
If a reception was successful: The second-hand points to Y (Yes; the 10-second position)|
---|---
If reception has failed: The second-hand points to N (No; the 20-second position)|
※ If Button A is pressed after five seconds or while the second hand is moving to display the reception results, the reception results display function is canceled and the secondhand resumes its normal movement.
If a reception was successful: The second-hand points to Y
- A radio signal has been received successfully. Use the watch without any adjustments.
※ When the watch is not displaying the precise time and date even after successfully receiving a radio signal → In this case, refer to Misalignment of the time and hands-on page 152 and Misalignment of the date on page 154.
If reception has failed: The second-hand points to N.
-
Place the watch in a place where it can easily receive a radio signal, or change its direction.
Even within the radio signal reception range, this watch may fail to receive a radio signal depending on the condition (due to the influence of weather, geographical features, buildings, or direction). → In this case, refer to Environments in which it is difficult to receive a radio signal on page 100.
This watch is unable to receive radio signals outside a reception range → Radio signal reception range indication on pages 96 – 98 -
Attempt to receive a Radio Signal in a different time period (In the case of manual reception).
Receiving environments differ according to time periods even at the same place.
Due to radio signal characteristics, the watch is able to easily receive radio signals during nighttime hours. -
When manually adjusting the time even after successfully receiving a radio signal, reception results are reset to “N.”
※ When pulling the crown to the second click, the watch enters the manual time setting mode and resets the reception results without adjusting the time. -
When the watch is unable to receive radio signals, it may move depending on the quartz movement.
※Accuracy of loss/gain: ±15 seconds per month
Time Zone Adjustment Function
What is the time zone adjustment function?
■ Features of time zone adjustment function
-
This watch is able to be set to an overseas local time in one-hour units.
Most of the regions around the world adopt time differences based on one-hour units.
The watch set time difference is based on UTC (Coordinated Universal Time).
The range of time differences around the world centered from UTC is “from – 11 hours to + 13 hours.” -
This watch can automatically display the local time of the desired area by selecting its time zone.
When the watch is set in the time zone adjustment mode, the second hand indicates the time zone.
Press the button to set the time zone referring to the position of the second hand. -
This watch selects a radio signal transmitting station by setting the time zone.
When the watch is used in Tokyo, set the second hand to “Tokyo (Japan): 9-second position” to receive the official standard frequency of Japan.
When the watch is used in China, set the second hand to “Hong Kong (China): 8-second position” to receive the official standard frequency of Japan.
If a time zone other than a radio signal reception range is selected, the radio signal reception function will not work.
→ How to set the time zone pages 106-107
→ List of major time zones around the world page 108
■ Questions and answers regarding time zone adjustment function
Ｑ: When returning to Japan from overseas, is the time automatically set to
Japan time?
Ａ: Just moving cannot adjust the time to Japan time. After setting the time
difference, radio signal reception is not performed. When wearing a watch in
Japan, set to Japan time by use of the time zone adjustment function.
Ｑ: The hands stop during the operation of the time zone setting, therefore,
does time lag occur?
Ａ: The internal circuit stores the time, therefore, no time lag occurs.
Ｑ: How accurate is the watch while the time difference is being set.
Ａ: While the time zone is being set, the watch has an accuracy of a normal
quartz watch. (Monthly rate: ±15 seconds)
Ｑ: How is an adjustment made to a local time with a time difference of 15
minutes or 30 minutes?
Ａ: The time can be adjusted on a 1-hour basis by use of the time zone
adjustment function.
When adjusting to a local time with a time zone difference of 15 minutes or 30
minutes, please refer to the ” How to manually set the time ” on pages
138-139.
How to set the time zone (Selecting transmitting station)
- Press and hold Button B until the second-hand moves (for four seconds).
• The secondhand starts to move, and then the watch enters the time zone adjustment mode.
| When a no
movement state of the second hand is kept for ten seconds or more, the watch
automatically switches to the time display state.
When it is in the middle of an operation, re-attempt the operation from the procedure “1.”※ Press Button B with a pointed object. → page 90
※ How to use buttons A and B → page 90
---|--- - Set the Time Zone by pressing the button to move the second hand.
※ The buttons can be pressed continuously.
The radio signal transmitting station can be changed by setting the time zones. When setting a time zone for regions other than the reception range, the radio signal reception function will not work.
• Set the time zone by moving the second hand.
The one-second movement of the second hand is equivalent to one hour in the time zone.If the watch is used in Japan| If the watch is used in China| If the watch is used in other areas
List of major time zones around the world → page 108
---|---|---
|
When the no movement state of the second hand is kept for ten seconds or more,
the watch automatically switches to the time display state.
When it is in the middle of an operation, re-attempt the operation from
procedure “1.”
- The watch automatically terminates the mode.
When the no movement state of the minute and hour hands are kept for ten seconds, the watch automatically terminates the Time zone adjustment mode. In the case that the date changes, the date display changes afterward.
※ During the movement of the date, neither the buttons nor the crown can be operated.
List of major time zones around the world
When setting a time zone for a region where no receivable official standard frequency is mentioned in the table below, the radio signal reception function will not work.
The position that the second hand indicates| Time difference with UTC| Name of
the representative city (Time zone)| Receivable official standard frequency
---|---|---|---
0-second position| ±0 hour| London/UTC ★| –
1-second position| +1 hours| Paris/Berlin ★| –
2-second position| +2 hours| Cairo ★| –
3-second position| +3 hours| Jeddah| –
4-second position| +4 hours| Dubai| –
5-second position| +5 hours| Karachi| –
6-second position| +6 hours| Dhaka| –
7-second position| +7 hours| Bangkok| –
8-second position| +8 hours| Hong Kong (China)| BPC
9-second position| +9 hours| Tokyo (Japan)| JJY
10-second position| +10 hours| Sydney ★| JJY △
11-second position| +11 hours| Nouméa| –
12-second position| +12 hours| Wellington ★| –
13-second position| +13 hours| (DST Wellington)| –
0-second position| ±0| London/UTC ★| –
59-second position| -1 hour| Azores ★| –
58-second position| -2 hours| (DST Rio de Janeiro)| –
57-second position| -3 hours| Rio de Janeiro ★| –
56-second position| -4 hours| Santiago ★| WWVB △
55-second position| -5 hours| New York ★| WWVB
54-second position| -6 hours| Chicago ★| WWVB
53-second position| -7 hours| Denver ★| WWVB
52-second position| -8 hours| Los Angels ★| WWVB
51-second position| -9 hours| Anchorage ★| –
50-second position| -10 hours| Honolulu| –
49-second position| -11 hours| Midway Islands| –
Daylight Saving Time (Summer Time) is in effect in time zones indicated with a
“★“ mark.
(As of November 2007)
If a receivable official standard frequency is indicated with a “△” mark,
summertime in the time zone can be set by receiving the frequency if the time
zone is within the radio signal reception range.
There are time differences around the world based on “Coordinated Universal
Time (UTC).” There are 24 regions (Time Zones) around the world with a time
difference of one hour. This system has been adopted internationally by
setting the total time difference around the world as 24 hours.
In addition, Daylight Saving Time (Summer Time) is individually adopted in
some regions.
[What is UTC (Coordinated Universal Time)?]
UTC is the universal standard time coordinated through international
agreements.
It is used as the official time around the world. UTC is determined by adding
a leap second to GMT (Greenwich Mean Time), which is determined through
astronomical measurement, in order to keep the precise time.
[What is summertime (DST)?]
Summertime is daylight saving time. Advancing the watch one hour to prolong
daytime during longer daylight hours 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.
※Time differences between regions and daylight saving time may change due to
the circumstances of a country or region.
※ A time difference established in 15 minutes or 30-minute units is adopted in
very limited regions (ex. India).
※Each indication may differ depending on the model （design） of the watch. （As
of April 2014）
Solar Charging Function
About charging
■ How to charge the watch
To enjoy the optimal performance of this watch, make sure that the watch is
kept sufficiently charged at all times.
| 
---|---
To charge the watch, expose the dial (solar cell) to adequate light.
| If the watch is concealed under a long sleeve shirt, or if it is used or stored continually under conditions where it cannot receive sufficient light, the power stored in the solar cell may be easily depleted because the watch cannot be sufficiently charged.
※ When changing the watch, keep the watch temperature under 60℃
※ Before initially using the watch or when the watch has stopped as a result
of complete depletion of stored power, charge the watch sufficiently.
■ The indication time for charging the watch
Standard charging time
Illumination (LUX)| Light source| Condition (Example)| Time required for fully
charging the watch| Time required for charging the watch to start moving at
one-second intervals ★| Time required for charging the watch to run for one
day
---|---|---|---|---|---
500| Incandescent light| 60W 60cm| －| －| 5 hours
700| Fluorescent light| General offices| －| －| 3 hours
1,000| Fluorescent light| 30W 70cm| －| 120 hours| 2 hours
3,000| Fluorescent light| 30W 20cm| 90 hours| 30 hours| 30 minutes
5,000| Fluorescent light| 30W 12cm| 70 hours| 24 hours| 24 minutes
10,000| Fluorescent light| 30W 5cm| 25 hours| 8 hours| 9 minutes
10,000| Sunlight| Cloudy day| 25 hours| 8 hours| 9 minutes
100,000| Sunlight| Sunny day（Under the direct sunlight on a summer day）| 8
hours| 2 hours| 3 minutes
★ The figures in the table above refer to the time required to charge the
stopped watch by exposure to light until the watch moves at steady one-second
intervals. Even if the watch is partially charged for a period shorter than
the time provided in the above table, it will resume one-second interval
movement, however, the one-second interval movement will change to two-second
interval movement shortly. To avoid this and charge the watch to a sufficient
level, use the charging time mentioned above as a measure.
※ The required charging time slightly varies depending on the model of the
watch.
※ The movement of the second hand checking the charging status → page 92
About energy
■ Energy depletion forewarning function
The energy depletion forewarning function is activated when the energy stored
in the watch runs low. In such a case, the secondhand moves at two-second
intervals. If the watch continues to be in the state of two-second interval
movement, the watch switches to a five-second interval movement, followed by a
completely stopped state.
If the energy depletion forewarning function is activated, charge the watch
sufficiently.
How to charge the watch ･･･ page 110
Standard charging time ･････page 111
※ Neither the buttons nor the crown can be operated while the secondhand moves
at two-second or five-second intervals （this is not a malfunction）.
※ While the secondhand moves at five-second intervals, the hour and minute
hands, date, and day stop operating.
※ While the secondhand moves at five-second intervals, the watch is unable to
receive radio signals automatically. After the watch is charged sufficiently
and the secondhand returns to normal one-second interval movement, conduct the
manual reception of radio signals to set the watch to the correct time. （Refer
to “How to set the time, date and day” on page 95.）
■ Power save function
This watch is equipped with a power save function (Power Saving) which can suppress energy consumption when it is left without receiving an adequate light source for a certain length of time.
| Power Save 1| Power Save 2
---|---|---
Condition| 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.
Situation| 
The second-hand
stops pointing at the 15-second position, and the hour and minute hands also
stop.| 
The second-hand
stops pointing at the 45-second position, and the hour and minute hands also
stop.
The watch does not conduct automatic radio signal receiving.
How to handle the situation| When the watch is exposed to an adequate light
source for five seconds or longer, it displays the current time again after
the second hand is rapidly advanced.| After sufficiently charging the battery,
set the watch for the current time, if necessary.
Power Save 2
※ While the watch is being charged, the secondhand moves at “Five-second
Intervals.”
During the “Five-second Interval Movement,” neither the buttons nor the crown
can 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.
When the watch returns to its normal movement of one-second interval after
sufficiently charging the battery, set the current time by receiving a radio
signal. (Refer to Setting the time and date by receiving a radio signal → page
95)
To preserve the quality of your watch
■ Daily care
-
The watch requires good daily care
• Wipe away moisture, sweat, or dirt with a soft cloth
• To clean the clearances (around the metallic band, crown, or case back), a soft toothbrush is convenient.
• After soaking the watch in seawater, be sure to wash the watch in clean pure water and wipe it dry carefully. -
Turn the crown from time to time
• In order to prevent corrosion of the crown, turn the crown from time to time.
• The same practice should be applied to a screw lock type crown. (No need to pull out the screw lock type crown.) Crown → page 91
■ Performance and type
The case back shows the caliber and performance of your watch
※ The figure above is one example. The performance of your watch is different from the above sample.
■ Water resistance
Refer to the table below for the description of each degree of water-resistant
performance of your watch before use.
Refer to the table below for the description of each degree of water-resistant
performance of your watch before use. （Refer to ” page 115 “）
Indication on the case back| Water-resistant performance|
Condition of use
---|---|---
No indication| Non-water resistance| Avoid drops of water or sweat
WATER-RESISTANT| Water resistance for everyday life| The watch
withstands accidental contact with water in everyday life.| WARNING Not
suitable for swimming
WATER-RESISTANT 5 BAR| Water resistance for everyday life at 5
barometric pressures| The watch is suitable for sports such as swimming.
WATER-RESISTANT 10 ( 20 ) BAR| Water resistance for
everyday life at 10(20) barometric pressures.| The watch is suitable for
diving not using an air cylinder.
WARNING
| Do not use the watch in scuba diving or saturation diving.
Do not use the watch in scuba diving or saturation diving.
CAUTION
※ 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 deteriorates. Immediately consult the retailer from
whom the watch was purchased or SEIKO CUSTOMER SERVICE CENTER (listed on the
end of a book).
| Do not turn or pull out the crown when the watch is wet.
Water may get inside of the watch.
| 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 the water-
resistant performance of the watch.
| Do not pour running water directly from the 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.
■ Magnetic resistance
Affected by nearby magnetism, a quartz watch may temporarily gain or lose time
or stop operating.
※When the hand positions deviate to display incorrect time as a result of the
influence of magnetism, this watch automatically corrects the hand alignment
itself. (Refer to page 142)
| Indication on the case back | Condition of use |
|---|---|
| No indication | Keep the watch more than 10 cm away from magnetic products. |
| Keep the watch more than 5 cm away from magnetic products. (JIS level-1 |
standard)
| Keep the watch more than 1 cm away from magnetic products. (JIS level-2
standard)
Examples of common magnetic products that may affect watches
| Cellular phone (speaker)
Bag (with magnet buckle)
AC-powered shaver
Portable radio (speaker)
Magnetic cooking device| Magnetic health belt
Magnetic necklace
Magnetic health mat
Magnetic health pillow
The reason why analog quartz watch is affected by magnetism.| It is because
the built-in motor of the watch, which harnesses magnetic power and external
strong magnetism, affects each other to stop the motor or suppresses the turn
of the motor.
■ 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 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 the 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.） -
Because some titan bracelets 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 bracelet, 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 the 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 （10-BAR water-resistant). -
Polyurethane band
• A polyurethane band is susceptible to discoloration from light and maybe 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 or cracked, replace the band with a new one
Notes on skin irritation and allergy| Skin irritation caused by a band has
various reasons 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.
■ Special Clasps
There are 3 types of special clasps as described below;
If the clasp of the watch you purchased is one of them, please refer to the
indications.
A A Type
| 1. Lift up the clasp to release the buckle. | 2. Open the flap. |
|---|
| 
3. Take the pinout of the adjustment hole, adjust the size of the strap by
sliding it back and forth, and then put the pin back into the appropriate
adjustment hole.| 4. Close the flap.
|
B B Type
- How to wear or take off the watch
1. Press the button on both sides of the buckle; pull the buckle up.
The band will automatically come out of the loop.| 2. Place the tip of the band into the moveable loop and fixed loop, and fasten the clasp by pressing the frame of the buckle.
---|---
| 
※ No Fixed loop with Metal Bracelets.
- How to adjust the length of the leather band
1. With pressing buttons on both sides of the buckle, pull the leather band out of the moveable loop and fixed loop. Then open the clasp.| 2. Press the pushbuttons again to unfasten the buckle.
---|---
| 
3. Pull the pinout 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.| 4. Fasten the buckle by pressing the pushbuttons.
|
**C** C Type
1. Press the button on the buckle, and lift it to open the clasp.|
2. To adjust: Pull the pins out of the adjustment holes on the band. Slide the band to the appropriate length. Push the pins into the new holes on the band.
---|---
| 
■ Lumibrite
If your watch has Lumibrite
Lumibrite is a luminous paint that is completely harmless to human beings and
the natural environment, containing no noxious materials such as radioactive
substances.
Lumibrite is a newly-developed luminous paint that absorbs the light energy of
the sunlight and lighting apparatus in a short time and stores it to emit
light in the dark.
For example, if exposed to 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.
Condition|
Illumination
---|---
Sunlight| Fine weather| 100,000 lux
Cloudy weather| 10,000 lux
Indoor (Window- side during daytime)| Fine weather| more than 3,000 lux
Cloudy weather| 1,000 to 3,000 lux
Rainy weather| less than 1,000 lux
Lighting apparatus (40-watt daylight fluorescent light)| Distance to the
watch: 1 m| 1,000 lux
Distance to the watch: 3 m| 500 lux (average room luminance)
Distance to the watch: 4 m| 250 lux
■ Power source
-
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” on page 111 to check the time required for fully charging the watch. NOTICE■ （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℃. -
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.
However, if the secondary battery is charged or discharged repeatedly over an extended period of time, its life may shorten. （This condition changes depending upon usage condition and storage environment.）
The secondary battery is an environmentally friendly, clean energy storage device. NOTICE• When replacing the secondary battery, make sure that the exclusive secondary battery for this watch is used. Installation of an ordinary silver oxide battery can generate heat that can cause bursting or ignition.
• Even when a silver oxide battery is substituted, electrical continuity cannot be obtained.
■ Guarantee
Within one year from the date of purchase, we guarantee free repair/adjustment
service against any defects according to the following guarantee regulations,
provided that the watch was properly used as directed in this instruction
booklet.
-
Guarantee coverage
The watch body (movement･case) and metallic band. -
Exceptions from guarantee
In the following cases, repair/adjustment services will be at a cost even within the guarantee period or under guarantee coverage.
• Change of leather/urethane/cloth band
• Troubles or damage caused by accidents or improper usage
• Scratches or grime caused by the use
• Problems and damage caused by acts of God, natural disasters including fire, floods, or earthquakes.
• The certificate of guarantee is valid only if all the necessary items are properly filled in.
We will not honor an altered or tampered certificate of guarantee for free repair services.
Free repair services are guaranteed only under the period and conditions specified in the certificate of guarantee. It does not affect the specific legal rights of a consumer. The certificate of guarantee is valid only in Japan.
-
Procedure to claim free repair services
• For any defects under guarantee, submit the watch together with the attached certificate of guarantee to the retailer from whom the watch was purchased.
• If repair services cannot be provided by the retailer from whom the watch was purchased, contact SEIKO CUSTOMER SERVICE CENTER. In this case, the attached certificate of guarantee is also needed. -
Others
• The movements, case, dial, hands, glass, crown, button, and bracelet, or parts thereof may be repaired with substitutes whose outward appearance may differ from the originals. If necessary, movements will be replaced.
• For length adjustment service of a metallic band, ask the retailer from whom the watch was purchased or SEIKO CUSTOMER SERVICE CENTER. Other retailers may undertake the service on a chargeable basis.
■ After-sale service
-
Replacement parts
• SEIKO makes it a policy to typically keep a stock of replacement parts for this watch for 7 years. Replacement parts are those which are essential to maintaining the functional integrity of the watch. 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. -
Notes on overhaul
Periodic inspection and adjustment by disassembly and cleaning (overhaul) are 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 the 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. -
Notes on guarantee and repair
• Contact the retailer the watch was purchased from 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.
Troubleshooting
1. Placing the watch| 2. Keep pressing Button A until the second hand has
finished its movement to the zero second position (Four seconds).
---|---
• When receiving a radio signal, place the watch where it can easily receive a
signal.
| • When the second hand has moved to the zero second position, the watch will start to receive a radio signal.
→ To enable the watch to easily receive a radio signal page 99| ※ When the
time difference is set for a region other than the radio signal reception
range, a radio signal cannot be received manually (The secondhand does not
move to the zero second position). Check the time difference set currently.
→ How to set the time zone pages 106-107
3. Do not move the watch while receiving a radio signal.
※ The reception of a radio signal cannot be conducted unless the watch is still.
It takes 12 minutes at the
longest according to the
receiving state of a radio signal.
• After about one minute from the start of receiving a radio signal, the second hand will start to indicate the receiving level.
Display during reception
Receiving Level is High: The second-hand points to H (High, the 50 the second
position)| Receiving Level is Low: The secondhand points to L (Low, the 40the
second position)
The reception level is updated by moving the second hand every one minute.
※ The minute hand moves by one minute along with the movement of the second
hand.
4. The watch displays the time when receiving a radio signal and after receiving a signal.
• Check whether receiving a radio signal has been successful. → page 102
※ During the movement of the date, neither the buttons nor the crown can be
operated.
Not receivable
If the Reception has failed: The Second-Hand Points to” N” (No; the 20-second
position)|
After five seconds, the watch will resume displaying the time.
※ It is difficult to receive the signals in some receiving conditions. →
Environments in which it is difficult to receive a radio signal Indication on
page 100
※ This watch is unable to receive a radio signal outside a reception range →
Radio signal reception range on pages 96-98
※ When the watch is unable to receive radio signals → If the Reception has
failed: The second-hand points to N on page 103.
Conditions in which the watch may be unable to receive radio signals
■ How to manually set the time
When the watch is used continuously in conditions in which the watch may be
unable to receive a radio signal, it can be manually adjusted.
※ When the watch is unable to receive a radio signal, it can move depending on
normal quartz movement (accuracy of loss/gain: ±15 seconds per month).
- When adjusting the time, the date will be accordingly adjusted.
- When the watch receives a radio signal after manual adjustment of the time, it displays the received time.
- When using the watch again in regions in which the watch is able to receive a radio signal, it is recommended to perform “Manual reception.”
→ How to conduct manual reception on pages 136-137
-
Pulling the crown to the second click
• The Second-hand moves to point to the “Zero seconds” position and the watch enters the manual time setting mode.
※ When the crown is a screw lock type, unlock it. → page 91
※ When the watch enters the manual time
setting mode, the reception results will be indicated as “N,” since the
reception results in data will be lost. -
- Press Button A to set the time.
One mile bane| Press Button A once and then release it.
---|---
Continuous Advance| When Button A is kept pressed for two seconds or longer, the hand will start to move. Press Button A again to stop.
- Press Button A to set the time.
※ How to
use buttons A and B → page 90
※ The hand will not move by turning the crown.
※ Advance the hand to adjust the time. The hand cannot be turned reversely.
※ The point in which the date changes at 0:00 AM (12:00 PM).
Adjust the time taking into consideration that it is set during the AM and PM.
- Push the crown back In.
• Operation has been completed.
The watch resumes its normal movement.
※ When the crown is a screw lock type, unlock it. → page
91
The watch will resume its normal movement after pushing the crown back in.
Push the crown back in according to the time signal.
■ How to manually set the date
When the date is not changed due to an environment in which the watch is unable to receive a radio signal (when changing from months with 30 days to months with 31 days or less), adjust the date manually.
- The date can be adjusted independently regardless of the time.
- When the watch receives a radio signal after conducting manual adjustment of the date, it displays the received date.
- When using the watch again in regions in which the watch is able to receive the radio signals, it is recommended to perform “Manual Reception.”
→ How to conduct manual reception on pages 136-137
※ When the date is not correct even if the watch successfully receives a radio signal, the preliminary position of the date may be misaligned.
Setting the preliminary position for the date → page 144
-
Pulling the crown to the first click
• The watch enters the manual date setting mode. (The watch keeps moving.)
※ When the crown is a screw lock type, unlock it. → page 91
-
Press Button A to set the date.
One day Advance| Press Button A once and then release it.
---|---
Continuous Advance| When Button A is kept pressed for two seconds or longer, the date will start to move.
Press Button A again to stop.
※ How to use buttons A and B → page 90
※ The date will not move by turning the crown.
※ During the movement of the date, the button cannot be operated.
※ Adjust the date by advancing the date. The date cannot be reversely moved.
- Push the crown back in.
• The operation has been completed.
※ When the crown is a screw lock type, lock it. → page 91
Preliminary position
When the watch is unable to display the precise time or date even if it
successfully receives a radio signal with the correct time zone setting, the
preliminary position may be misaligned.
The radio-controlled watch can automatically adjust the time, however, if the
preliminary hand position is an improper one, the watch will be unable to
display the precise time even when receiving a radio signal.
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.”
-
When it is necessary to adjust the preliminary position
When displaying a wrong date after receiving a radio signal correctly, or when performing a system reset, the preliminary position of the date must be adjusted.
→ How to set the preliminary position on page 144 -
Function to automatically align the preliminary position of the hand (Automatic hand Position adjustment function)
The hand has an “Automatic hand position adjustment function,” which automatically corrects a wrong preliminary position.
The automatic hand position alignment function activates once a minute for the second hand and at 12:00 both for the AM and PM for the minute and hour hands.
※ The preliminary position of the hour and minute hands can be adjusted manually.
Since the preliminary position of the date is not automatically adjusted, it must be adjusted manually.
※ When the watch is not displaying the precise time and date even after successfully receiving a radio signal due to factors other than the above- mentioned ones → At Trouble: Misalignment of the time and the hands-on page 152, Misalignment of the date on page 154.
〈Misalignment of the time and date〉
- In the case of having a strong impact: Misalignment of the time and date may occur when dropping or hitting the watch.
- In the case of a magnetic influence: Misalignment of the time and date may occur when bringing the watch close to an object which generates magnetism.
■ Things around you that generate magnetism
| | 
---|---|---
• Magnetic Clip| • Accessories using a magnet| • Magnetic therapy devices (a
heating pad, bedding, a lumbago band, etc.)
| 
| 
• Magnet of doors for a
refrigerator or furniture| • Speakers used for such as audiovisual apparatus,
radio, an earphone, and a cellular phone| • Clasps for a bag or wallet
How to set the preliminary position
■ Setting the preliminary position of the date
The preliminary position of the date is the “1st.” When the preliminary
position of the date is incorrect, the correct date cannot be displayed even
if the watch receives a radio signal.
Loss or gain of the date can be adjusted by setting the preliminary position
of the date as the “1st.”
In the case that the numerical number of the date does not locate at the
center of the window, it also can be corrected by the same procedures as
mentioned above.
When setting the preliminary position of the hour and minute hands right after
setting the preliminary position of the date, after completing procedure 2 of
preliminary position setting of the date, go to procedure 2 on page 147.
1. Press and hold Button A and Button B simultaneously until the second-hand stop at the 13-second position (for four seconds).
The date will start to advance and stop at the preliminary position.
| ※ Never
pull the crown out.
※ How to use buttons A and B → page 90
※ In order to perform the procedures easily, it is recommended to first press
and hold Button B, and then press Button A.
• While dates are advancing, no button operation can be made.
• After the date stops, when the watch has no operation and no movement of the
hands for ten seconds or longer, it automatically displays the time again.
• When it is in the middle of an operation, re-attempt the operation from the
procedure “1.”
2. Pressing Button B to set the date to “1.”
Set the preliminary position to the precise date.
Adjust the date so that the position of “1” will locate at the center of the
window.
Continuous advancement| If Button B is kept pressed for two seconds or longer,
the dates advance continuously. Press Button B again to slop.
---|---
Fine-tuning:| Each pressing of Button B advances the date gradually.
※ The date can only be advanced. It cannot be turned back.
3. Automatic mode termination
When the date movement stops, the preliminary position adjustment mode will be
terminated in ten seconds.
Confirm whether the date is correct after the watch resumes displaying time.
In the case that the data is not correct, adjust the date.
Adjust the date by receiving a radio signal.
How to conduct manual reception → page 136
If the watch is unable to receive radio signals
How to manually set the date → page 140
■ Setting the preliminary positions of the hour and minute hands manually
No button operation is needed if setting the hands to the preliminary
positions automatically.
→ Automatic hand position alignment function on page 142
Conduct the following procedures when setting the hour and minute hands manually.
When setting the preliminary position of the hour and minute hands right after setting the preliminary position of the date, after completing procedure “2” of preliminary position setting of the date on page 145, go to procedure “2.”
1. Press and hold Button A and Button B simultaneously until the second-hand stop at the 13-second position (for four seconds).
The watch enters the mode to adjust the preliminary position of the date.
| ※ Never
pull the crown out.
※ How to use buttons A and B → page 90
※ In order to perform the procedures easily, it is recommended to first press
and hold Button B, and then press Button A.
• While dates are advancing, no button operation can be made.
• After the date stops, when the watch has no operation and no movement of the
hands for ten seconds or longer, it automatically displays the time again.
• When it is in the middle of an operation, re-attempt the operation from the
procedure “1.”
2. After the date stops, press and hold Button A until the second-hand stops
at the 0-second position (for two seconds).
Enter the mode to adjust the preliminary positions of the hour and minute
hands.
• While dates are advancing, no button operation can be made.
• After the date stops, when the watch has no operation and no movement of the
hands for ten seconds or longer, it automatically displays the time again.
• When it is in the middle of an operation, re-attempt the operation from the
procedure “1.”
3. Press Button B Once.
The preliminary positions of the hour and minute hands are automatically
adjusted. The hour and minute hands start to move, and then all hands will
stop at the 0-second position.
After 10 seconds when all hands will stop at the 0-second position, the watch
will return to display the time.
Troubles| Possible causes| Solutions| Reference page
---|---|---|---
Movement of the watch hands| The secondhand moves at two-second intervals.|
The energy depletion forewarning function is activated. （page 112）
If this function is activated even though you wear the watch every day, the
watch may be unable to receive sufficient light because it is concealed under
a long sleeve shirt, etc.| Sufficiently charge the watch until it starts
moving at one-second intervals.
Make sure that the watch is not concealed under a sleeve while you are wearing
the watch. When taking the watch off, place the watch in a location as bright
as possible.| page 110
The second-hand moves at five-second intervals
The stopped second hand pointing to the 15-second position started moving.|
The Power Save has been activated to limit energy consumption. （page 113）
When the watch is used or stored continually under conditions where it cannot
receive sufficient light, the power save function is automatically activated
in order to reduce unnecessary energy consumption.| Wait until the watch
returns to the current time display.
Use the watch as it is （this is not a malfunction)| －
The stopped second hand pointing to the 45-second position started moving.|
The Power Save has been activated to limit energy consumption. （page 113）
When the watch is used or stored continually under conditions where it cannot
receive sufficient light, the power save function is automatically activated
in order to reduce unnecessary energy consumption.| ① Sufficiently charge the
watch until it starts moving at one-second intervals.
② Set the time, date, and day.| page 110
page 95
The watch hands were fast-forwarded even though no button had been pressed,
and then the watch resumed regular movement.| The Power Save function has been
activated. （page 113）
The automatic hand alignment function has been activated. （page 142）
When the hand positions deviate to display incorrect time as a result of the
influence of various external sources, the watch automatically corrects the
hand alignment itself.| Use the watch as it is （this is not a malfunction）.| －
At trouble
| Possible causes| Solution|
Reference page
---|---|---|---
Reception
of a radio
signal| When the watch is unable to receive a radio signal
The reception results have failed and the second-hand points to N (the watch
does not receive a radio signal).| The watch was moved while it was receiving
a radio signal.| Do not move the watch while it is receiving a radio signal.
The reception of the radio signals cannot be conducted unless the watch is
still.| page 99
The watch was left where the radio signal was weak or where it was unable to
receive a radio signal (page 100).| Place the watch where it is able to easily
receive a radio signal.| page 99
Transmitting stations may have stopped transmitting radio signals for some
reason (Transmission stop).| Check the website of each transmitting station
for further information concerning a transmission stop. Attempt to receive a
radio signal again after a while.| page 101
The watch is set to a time zone other than a radio signal reception range (a
wrong transmitting station is selected).| C) Check the time zone that the
watch is currently set for (the transmitting station that is currently
selected), and select the right time zone.
C) When the watch is not displaying the precise time, receive a radio signal
again if necessary.| page 106
page 95
Charging
the solar
battery| 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 one-second interval movements.| The light is too weak or the manner of
lighting the watch has been altered while the watch is being charged.| Charge
the watch in an environment where the watch can be exposed to an adequate
intensity of light in a stable condition.| page 110
The Built-in IC of the watch has fallen into an unstable condition.| Refer to
the “In Case of an Abnormal Movement” section and perform the operations as
instructed.| page 156
At Trouble
| Possible causes| Solution|
Reference pages
---|---|---|---
Misalignment of the time and hand positions| The watch temporarily gains or
loses time.| The watch fails to receive a radio signal correctly as a result
of external influence (incorrect reception).| ① Place the watch where it is
able to receive a radio signal more easily.
② Conduct manual reception if necessary.| page 99
page 136
The watch has been left in an extremely high or low-temperature place for a
long time.| ① When the watch returns to a normal temperature, it will display
the precise time as before.
② If the watch still gains or loses time, conduct manual reception if
necessary.
③ If the watch cannot resume normal movement even after conducting the above-
mentioned procedures, consult the retailer from whom the watch was purchased.|
－ page 136
－
The watch displays an incorrect time hour unit, even though it displays the
precise time of minutes and seconds| The watch may be set to a time in a
different time zone from the region where the watch is currently used.| Check
the time zone that the watch is currently set for, and select the right time
zone.| page 106
The reception results are successful, but the precise time is not displayed.|
The hand positions were misaligned as a result of external influence. The
hands are out of the preliminary position as a result of external influence. →
Preliminary position on page 142| ① No crown or button operation is needed
since the automatic hand position adjustment function will be activated to
align the hand positions. Automatic Hand Position Adjustment Function
activates once a minute for the second hand and at 12:00 both for the AM and
PM for the minute and hour hands.
If you are in a hurry, the preliminary position of the hour and minute hands
can be adjusted manually.
② If the misalignment of the hand is not corrected, refer to the “In case of
an abnormal movement” section and perform the operations as instructed.
③ If the misalignment of the hand is not corrected even after performing the
operations as instructed in the ②, consult the retailer from whom the watch
was purchased.|
page 142
page 156
－
The second-hand position is not correctly aligned in“the reception results
display” or “the reception level display.”| The second hand is out of the
preliminary position as a result of external influence.
→ Preliminary position on page 142
At Trouble| Possible causes| Solution| Reference pages
---|---|---|---
Misalignment of the date| The reception result display confirms successful
reception, and the correct time is displayed, but the wrong date is
displayed.| The date is out of preliminary position.
This happens when the date is out of preliminary position as a result of the
influence of various external sources or after the built-in IC is reset.|
Check if the date is set to the correct preliminary position. If not, correct
the preliminary position for a date.| page 144
Operation| The crown or buttons cannot be operated.| The stored electric power
is running short.| Sufficiently charge the watch until it starts moving at
one-second intervals.| page110
Date and day are moving right after a setting is carried out by the crown or
button operation.| Wait for a while without doing anything.| －
You get lost in the middle of the operation.|
－－－－－－－－－－－－－－－－－
| Leave the watch as it is for a while. The watch resumes regular movement. If
the crown is pulled out, push it back in. After a while, carry out the setting
procedures again from the beginning.| －
Others| Blur on the dial glass persists.| A small amount of water has got
inside the watch due to deterioration of the gasket, etc.| Contact the
retailer from whom the watch was purchased.| －
In case of an abnormal movement
In the case that the watch moves abnormally or that the watch does not move at one-second intervals even after fully charging the battery, perform the procedures from ① -⑧ to re-establish normal function.
■ How to reset the Built-in IC, (① – ③ )
-
When pulling the crown to the second click, the second-hand stops at the zero-second position.
※ When the crown is a screw lock type, unlock it.
→ page 91
-
Press and hold Button A and Button B simultaneously for four seconds, and then release them.
• In five seconds after releasing the buttons, the second-hand makes a full rotation and stops at the zero second position. Then the hands of the hour and minute will start to move toward the Zero second position.
※ How to use buttons A and B → page 90
※ In order to perform the procedure easily, it is recommended to first press and hold Button B, and then press Button A.
■ Adjusting the preliminary position of the date（④～⑤） -
When all the hands return to the zero second position, push the crown back in.
• The second hand will start to move from 0:0:0 AM
※ When the crown is a screw lock type, unlock
it. → page 91
※ If the secondhand does not start to move from “0:0:0 AM,” the resetting of the Built-in IC may not activate. In such a case, re-attempt the operation from the procedure “2.” -
Press and hold But t on A and But t on B simultaneously until the second-hand stop at the 13-second position (for four seconds).
• The watch enters the mode to adjust the preliminary position of the date.
※ Never
pull the crown out
• When the watch has no operation for ten seconds or longer, the mode automatically terminates.
• When it is in the middle of an operation, re-attempt the operation from the procedure“4.” -
Pressing Button B to Set the Preliminary Position to the “1.”
• Adjust the date so that the position of “1” will locate at the center of the window.
Continuous
advancement| Each pressing of Button A advances the date by one day.
If Button A is kept pressed for the dates advance continuously. Press Button A again to stop it.
Continuous advancement: If Button B is kept pressed for two seconds or longer, the dates advance continuously. Press Button B again to stop.
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Fine-tuning| Each pressing of Button B advances the date gradually.
The preliminary position adjusting mode terminates 10 seconds after the
procedure “5” has been completed.
■ Setting the time zone（⑥～⑦）
-
Press and hold Button B until the second-hand moves (for four seconds) to the 0-second position.
• The watch enters the time zone adjustment mode.
When a no movement state of the second hand is kept for ten
seconds or more, the watch automatically switches to the time display state.
When it is in the middle of an operation, re-attempt the operation from procedure “6.” -
Set the time zone by pressing the button to move the second hand (selecting a transmitting station).
• Set the time zone of the area where the watch is used.※ The buttons can be pressed continuously.
Other areas: List of major time zones around the world → page 108
The time zone adjusting mode terminates 10 seconds after the procedure “7” has been completed.- Set the Time
Set the time by receiving a radio signal.
How to conduct manual reception → page136
If the watch is unable to receive radio signals
How to manually set the time → page 138
The operation has been completed when setting the time
- Set the Time
Specifications
-
Frequency of crystal oscillator ･････32,768 Hz (Hz = Hertz … Cycles per second)
-
Loss/gain (monthly rate) ･･･････････ Loss/gain ±15 seconds on a monthly rate (Except the case when the watch is used without an automatic time setting by receiving a radio signal and when it is worn on the wrist within a normal temperature range between 5℃ and 35℃ ).
-
Operational temperature range ････Between －10℃ 〜 +60℃
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Driving systems ･････････ Step motor (Hour and minute hands, second hand, and the date)
-
Power source ･･････････････････････Secondary battery, 1 piece
-
Duration of operation ･･･ Approximately six months (Fully charged, and the Power Save is not activated).
※ If the Power Save is activated after it is fully charged, the watch continues to run for approximately one year and a half at maximum. -
Time setting by receiving the JJY-LF radio signal ･･･ Automatic reception (at 2:00 AM 3:00 AM and 4:00 AM)
※ Reception attempts depend on the radio signal receiving conditions.
※ After having received a radio signal, the watch will start to move depending on the quartz movement until the next reception.
※ Manual reception is also possible -
IC (Integrated Circuit) ･･･ Oscillator, frequency divider and driving circuit C-MOS-IC, 3 pieces
※ The specifications are subject to change without prior notice for product improvement.
0120-612-911
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