JAEGER-LECOULTRE 905T471 Polaris Chrono Worldtime Watch User Guide
- June 3, 2024
- JAEGER-LECOULTRE
Table of Contents
905T471 Polaris Chrono Worldtime Watch
- Hour hand
- Minute hand
- Crown A: Setting the time and winding
- Crown B: Setting the cities
- Chronograph seconds hand
- Hour counter
- Minute counter
- Push-piece A: Chronograph start/stop
- Push-piece B: Chronograph resetting
- City disc
- 24 time zone disc
Introduction
We would like to thank you for the confidenceyou have placed in Jaeger-
LeCoultre. OurMaison has applied all its expertise and exactingstandards to
the creation of this model. We invite you to consult the operatinginstructions
and hope your Jaeger-LeCoultretimepiece brings you great joy.
Accuracy and precautions for use
MANUALLY WOUND OR AUTOMATIC MECHANICAL WATCHES
The accuracy of watch models with mechanicalmovements is determined by the
balancewheel. This oscillates at a rate of 28,800vibrations per hour. Despite
all the care that the master watchmakers of the Jaeger-LeCoultreManufacture
have lavished on building andassembling your watch, its accuracy is subjectto
the influence of gravity, magnetic fields, accidental impacts, and the ageing
of oils.The accuracy of a watch is measured by its regularity of rate in
various positions.
Your individual activities could be the cause of slight irregularities in the
working of your timepiece. If you observe a discrepancy in the way your watch
runs, we advise you to entrust it to an authorised Jaeger-LeCoultre retailer
who will make the necessary adjustments. Watches with mechanical movements
must not be used for sports involving significant risk of impact or abrupt
actions, such as golf or tennis.
Water resistance
Your Jaeger-LeCoultre watch is water resistant up to 10 bar. Its water resistance can be identi- fied by the symbol and/or by “10 bar” engraved on the case-back. This means that your model has been tested at an overpressure of 10 bar, corresponding to an immersion pressure of 100 metres (1 bar = ±10 metres). In accordance with the ISO 2810/NIHS 92-20 standard, in order to guarantee the durability of the watch’s characteristics over time, and as water resistance may be affected by certain activities, it is recommended that you:
– have the watch’s water resistance checked by an authorised Jaeger-LeCoultre
retailer at least once every two years. It is essential to have such a check
carried out each time
your watch is opened, and before any period in which it is liable to undergo
prolonged and/ or regular immersions.
– check when making the purchase that the bracelet is suitable for the
intended use.
– avoid subjecting the watch to excessively abrupt temperature changes.
– protect the watch from being dropped or suffering other accidental impacts,
and have the water resistance checked after any severe impact.
– avoid using the controls, push-piece, or time- setting crown while under
water, or outside the water, if the watch is not yet dry after immersion.
– restore the time-setting crown and the push- pieces to their normal
positions, or where applicable, close the compression keys after every
manipulation.
– rinse the watch with fresh water after use in sea water.
You may use your watch while swimming, as long as you do not exceed the
immersion pressure and do not engage in any water sports that could cause
impacts. This watch is not a piece of diving equipment and should not be used
as such. Also, note that leather straps are not suited for aquatic activities.
“1000 Hours Control” test
The Jaeger-LeCoultre Manufacture pays close attention to the quality and to
the final checks of its watches. The 1000 Hours Control is a series of
internal qualification tests for each of the models in our collection, as well
as internal tests on the pro- duction of your watch, which go beyond official
timing tests. These tests include checks of the movement before and after
being cased up in the watch and covers the whole watch once it has been
assembled, in the conditions closest to daily wear.
The “1000 Hours Control” legend, or the seal engraved on the back of the watch
certifies that each of the models from our collection has successfully
undergone all of the qualification tests, and that your watch has successfully
undergone all of the production tests. These ensure regularity of rate,
resistance to variations in temperature and atmospheric pressure, ability to
withstand shocks and magnetic fields, as well as water resistance.
Technical specifications
– Automatic mechanical Manufacture movement, Jaeger-LeCoultre Calibre 752.
– 28,800 vibrations/hour.
– Power reserve: approximately 65 hours.
– Water-resistant to 10 bar.
Use
STARTING AND WINDING
Crown A in position 0.
A few clockwise turns of the crown are enough to start your watch. It will
then automatically wind up when you wear it. Please note that the crown does
not lock when winding, even when the watch is fully wound.
SETTING THE HOUR AND MINUTES
Pull Crown A out to position 1.
The movement is then locked (“stop seconds” function).
Move the hands forward clockwise to the desired time and, on the hour signal,
push the crown back to position 0. The watch starts running again.
OPERATING THE CHRONOGRAPH
The central seconds hand on your Jaeger- LeCoultre Polaris Chronograph WT
displays the chronograph seconds to the nearest eighth of a second. A counter
located at 3 o’clock tallies the minutes up to 30 minutes (after 1 revolution
it will start counting another 30 minutes). Another counter at 9 o’clock
tallies the hours up to 12 hours (after one revolution it will start counting
another 12 hours).
– Push-piece A: this push-piece starts and stops the chronograph function.
– Push-piece B: this push-piece resets the counters and the central seconds
hand. When timing is in progress, resetting is not possible, the function is
locked.
TIMING
– The chronograph is activated by pressing push-piece A once. The central
seconds hand will turn, and the minute and hour counters will run. Pressing
push-piece A again will stop the chronograph, enabling the time measurement to
be read.
– Reset by pressing push-piece B to make another timing measurement.
– It is possible to add up several timing ope- rations by pressing again on
push-piece A (without having to reset the counters). Timing is re-started, and
is added to the revious
measurement.
WORLD TIME FUNCTION
Your watch has a world time display, which allows the simultaneous display of
the time in 24 cities around the world, situated in the 24 time zones (regions
where the time difference is a fraction of an hour (India, Nepal, Iran) are
not included on the city disc). The simultaneous reading of the time in these
24 cities is thus possible thanks to the city disc and the 24-hour turning
ring. This readingnecessitates a pre-setting involving settingthe correct time
zone by positioning thecorresponding city at 6 o’clock (the referencetime for
the mechanism). If the time is set at 5 o’clock, you will see thatthe 24-hour
ring displays ‘5’ opposite thecity at 6 o’clock. 2 hours later, at 7
o’clock,you will see that the 24-hour ring has moved forward, indicating ‘7’
opposite the city at 6o’clock. You can read the time in all time
zonessimultaneously.
How to proceed:
- Set the hour and minute according to the instructions below (setting the time).
- Crown B (at 10 o’clock) moves the city disc: turn the crown either way in order to bring the city which corresponds to your local time next to the numeral ‘6’ on the dial (6 o’clock).
- The 24-hour ring will now display the same time as your local time opposite the number ‘6’ and therefore opposite the reference city which you placed in this position.
Once this pre-setting is completed:
- The city disc will not move.
- The 24-hour ring will turn in unison with the local time, but will go round the dial once in 24 hours. The time in each city will be updated in accordance with the local time.
- You can thus read the time in any of the indicated cities at any time by reading the hour opposite the relevant city on the 24-hour ring, and the central minute hand.
- If you move into another time zone, repeat the initial operation in order to display the city corresponding to the new time zone at 6 o’clock.
STRAP
Jaeger-LeCoultre leather straps are fitted with a fast interchangeability
system which makes it possible to remove the strap without the use of a tool.
Metal and rubber straps require a tool (not included) in order to be removed.
We recom- mend that you contact an authorised Jaeger- LeCoultre retailer or a
Jaeger-LeCoultre Boutique.
Jaeger-LeCoultre watches
In order to benefit from the International Guarantee and/or the Limited Warranty and/or the Manufacturer’s Guarantee for Australia, Jaeger- LeCoultre products must be purchased exclusively from authorised Jaeger-LeCoultre retailers or from Jaeger-LeCoultre Boutiques. Maintenance and repair work must be entrusted to an authorised Jaeger-LeCoultre retailer, a Jaeger-LeCoultre Boutique, or an authorised Jaeger-LeCoultre Service Centre. If these conditions are not met, the manufacturer’s guarantee does not apply. Please contact Jaeger- LeCoultre to obtain the list of authorised Jaeger- LeCoultre retailers across the world.
International Guarantee
The International Guarantee applies to Jaeger- LeCoultre products sold or presented for guarantee repairs in all countries, except the United States of America and Canada (for these two countries, see the Limited Warranty) and Australia (for this country, refer to the Guarantee for Australia).
TERMS AND CONDITIONS OF THE JAEGER-LECOULTRE INTERNATIONAL GUARANTEE
Your Jaeger-LeCoultre watch is guaranteed to protect against all manufacturing
defects for two years from the date of purchase, subject to the following
conditions. Any part found by our technical services to be defective as a
result of a manufacturing defect will, at the sole discretion of Jaeger-
LeCoultre, be repaired or replaced free of charge. The Jaeger-LeCoultre
International Guarantee is valid only if the guarantee certificate enclosed
with this booklet has been duly completed, dated, stamped, and signed by the
authorised Jaeger-LeCoultre re- tailer or the Jaeger-LeCoultre Boutique, which
sold you your watch. The Jaeger-LeCoultre International Guarantee does not
cover defects resulting from ac- cidents, mishandling, or incorrect, abusive
use (for example, knocks, dents, crushing, excessive temperatures, powerful
magnetic fields), the use of or effect of using batteries other than those
designated by Jaeger-LeCoultre, unauthorised alteration or repair, the
consequences of normal wear and ageing of the watch, strap, or glass, the loss
of water resistance after two years from the date of purchase, if your watch
is water-resistant, or any defect resulting from contact with water, if your
watch is not water- resistant. Jaeger-LeCoultre water-resistant watches can be
identified by the symbol and/or by “3, 5, 10, or 20 bar” (or another number
depending on the model) engraved on the caseback. Their water resistance is
guaranteed for two years from the date of purchase, provided that the glass,
bezel, back, middle part, and crown have not been damaged. It is neverthe-
less essential to have the water resistance of your watch checked at least
once every two years, and in any event, prior to any period of intensive use,
either by an authorised Jaeger- LeCoultre retailer, a Jaeger-LeCoultre
Boutique, or authorised Jaeger-LeCoultre Service Centre (for further
information please see your User Manual). For quartz watches, this guarantee
does not cover the battery life. As a consumer, you may have legal rights
under applicable national legislation governing the sale of consumer goods;
those rights are not affected by this guarantee.
Limited Warranty (United States of America and Canada) The following Limited
Warranty applies to Jaeger-LeCoultre products sold or presented for warranty
repairs in the United States of America and Canada only.
TERMS AND CONDITIONS OF THE JAEGER- LECOULTRE LIMITED WARRANTY
Your Jaeger-LeCoultre watch is guaranteed against all manufacturing defects
for two years from the date of purchase, subject to the following conditions.
Any part found by our technical services to be defective as a result of a
manufacturing defect will, at the sole discretion of Jaeger-LeCoultre, be
repaired or replaced free of charge. The Jaeger-LeCoultre Limited Warranty is
valid only if the warranty certificate enclosed with this booklet has been
duly completed, dated, stamped, and signed by the authorised Jaeger-LeCoultre
retailer or the Jaeger- LeCoultre Boutique, which sold you your watch. This
Jaeger-LeCoultre Limited Warranty does not cover defects resulting from
accidents, mishandling, or incorrect, abusive use (for example, knocks, dents,
crushing, excessive temperatures, powerful magnetic fields), the use of or
effect of using batteries other than those designated by Jaeger-LeCoultre,
unauthorised alteration or repair, the consequences of normal wear and ageing
of the watch, strap, or glass, the loss of water resistance after two years
from the date of purchase, if your watch is water-resistant, or any defect
resulting from contact with water, if your watch is not water- resistant.
Jaeger-LeCoultre water-resistant watches can be identified by the symbol
and/or by “3, 5, 10, or 20 bar” (or another number depending on the model)
engraved on the caseback. Their water resistance is guaranteed for two years
from the date of purchase, provided that the glass, bezel, back, middle part,
and crown have not been damaged. It is nevertheless essential to have the
water resistance of your watch checked at least once every two years, and in
any event, prior to any period of intensive use, either by an authorised
Jaeger- LeCoultre retailer, a Jaeger-LeCoultre Boutique, or authorised Jaeger-
LeCoultre Service Centre (for further information please see your User
Manual). For quartz watches, this guarantee does not cover the battery life.
Except insofar as prohibited by applicable law, this Limited Warranty shall be
the exclusive manufacturer warranty. Neither this Limited Warranty nor any
other warranties, whether expressed or implied, including, but not limited to,
any implied warranty of merchantability or of fitness for any particular
purpose, shall extend beyond the period of two years from the date of
purchase. The liability of Jaeger-LeCoultre is limited solely and exclusively
to repair or replacement under the terms and conditions stated herein. Jaeger-
LeCoultre shall not be liable, by virtue of this Limited Warranty or
otherwise, for any loss or damage arising out of the use of or in- ability to
use this watch nor for any incidental or consequential damages relating in any
way to this watch. Some States, Provinces, and Territories do not allow
limitations on how long an implied warranty lasts or the exclusion or
limitation of incidental or consequential damages, so the above limitations or
exclusions may not apply to you. This Limited Warranty grants you specific
legal rights, in addition to which you may have other legal rights that vary
from one Country, State, Province, or Territory to another.
Guarantee for Australia
This Guarantee for Australia applies to Jaeger- LeCoultre products sold or
presented for guarantee repairs in Australia only.
TERMS AND CONDITIONS OF THE JAEGER-LECOULTRE GUARANTEE FOR AUSTRALIA
Mandatory Statutory Rights. Our goods come with guarantees that cannot be
excluded under the Australian Consumer Law. You are entitled to a replacement
or refund for a major failure and compensation for any other reasonably
foreseeable loss or damage. You are also entitled to have the goods repaired
or replaced, if goods fail to be of acceptable quality and the failure does
not amount to a major failure. This Jaeger-LeCoultre Guarantee gives you
additional rights provided by Jaeger-LeCoultre. Every Jaeger-LeCoultre product
is made and tested to meet the Jaeger-LeCoultre quality standards.
Nevertheless, should your Jaeger- LeCoultre product prove defective, please
con-tact the Jaeger-LeCoultre retailer or Jaeger- LeCoultre Boutique indicated
on your guarantee certificate; only authorised Jaeger-LeCoultre retailers or
Jaeger-LeCoultre Boutiques are entitled to provide a guarantee service as
defined in this Jaeger-LeCoultre Guarantee. In order to benefit from this
guarantee, you will be required to present this Jaeger-LeCoultre guarantee
certificate duly completed, dated, stamped, and signed by an authorised
Jaeger-LeCoultre retailer or a Jaeger-LeCoultre Boutique. This Jaeger-
LeCoultre Guarantee covers defects of materials or workmanship of your Jaeger-
LeCoultre product. Jaeger-LeCoultre will remedy these identified defects free
of charge for up to two (2) years from the date of purchase. Thereafter,
Jaeger-LeCoultre will repair any defective product or part subject to a
service charge. The Jaeger-LeCoultre Guarantee does not cover defects and
damage caused by accident, improper use (including knocks, dents, crushing,
etc.), normal wear and tear, alteration, dismantling, repair by persons other
than authorised Jaeger-LeCoultre repair specialists, the use of components
other than those recommended by Jaeger-LeCoultre, watches with the serial
number removed, the strap or glass altered, the loss of water resistance after
two years after the date of purchase, if your watch is water-resistant, and
any defect resulting from the contact with water, if your watch is not water-
resistant. Jaeger-LeCoultre water-resistant watches can be identified by the
symbol and/or by “3, 5, 10, or 20 bar” (or another number depending on the
model) engraved on the case-back. Their water resistance is guaranteed for two
years from the date of purchase, provided that the glass, bezel, back, middle
part, and crown have not been damaged. It is essential to have the water
resistance checked by an authorised Jaeger- LeCoultre retailer, a Jaeger-
LeCoultre Boutique, or an authorised Jaeger-LeCoultre Service Centre at least
every two years, and in any event, prior to any period of intensive use.
Please refer to the operating instructions for further details. For quartz
watches, this guarantee does not cover the battery life.
Jaeger-LeCoultre Customer Service
A Jaeger-LeCoultre timepiece is a high- precision instrument that operates 24
hours a day, or 8,760 hours a year. Therefore, it is essential to have it
serviced regularly in order to guarantee its good working order and its
durability. If significant variations occur in the settings, it may be
necessary to have the movement serviced. It is also necessary to have the
water resistance of the watch checked once every two years, or prior to any
period during which it will be subjected to prolonged and/or regular
immersion. Maintenance and repair work must be entrusted to an authorised
Jaeger-LeCoultre retailer, a Jaeger-LeCoultre Boutique, or authorised Jaeger-
LeCoultre Service Centre. The list of our points of sale and service centres
is available on our website: www.jaeger-lecoultre.com. You will also find this information at the end of this
document, under the heading “Where to en- trust my timepiece for maintenance?”
Our authorised Service Centres are staffed by watchmakers trained at the
Jaeger-LeCoultre Manufacture, and have the workshops, tools, and parts
required for the repair and maintenance of Jaeger-LeCoultre watches and
clocks. In certain cases, especially for operations requiring special tools
and parts, the Service Centres will send your watch to the Jaeger- LeCoultre
Manufacture in Switzerland to have the necessary work carried out.