Jaeger-leCoultre Polaris Geographic WT User manual

Jaeger-LeCoultre
Polaris Geographic WT

ENGLISH
Contents
Introduction 25
Accuracy and precautions for use 25
Water resistance 26
“1,000 Hours Control” test 28
Technical specifications 29
Movement 29
Functions 30
Use 30
International Guarantee 46
Limited Warranty 50
(United States of America and Canada)
Guarantee for Australia 54
Jaeger-LeCoultre Customer Service 57

24
7
2
5
4
10
9
6
1
11
3
8
1Hour hand
2Minute hand
3Seconds hand
4Date
5Crown A: Setting the time and winding
6Crown B: Setting the city
7Corrector C: Setting the date
8City disc
924-hour disc
10 Hour and minute of the favoured time zone
11 Power reserve

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Introduction
We would like to thank you for the confidence
you have placed in Jaeger-LeCoultre. Our
Maison has applied all its expertise and exacting
standards to the creation of this model.
We invite you to consult the operating
instructions and hope your Jaeger-LeCoultre
timepiece brings you great joy.
Accuracy and precautions for use
MANUALLY-WOUND OR AUTOMATIC
MECHANICAL WATCHES
The accuracy of watch models with mechanical
movements is determined by the balance
wheel. This oscillates at a rate of 28,800
vibrations per hour. Despite all the care that the
master watchmakers of the Jaeger-LeCoultre
Manufacture have lavished on building and
assembling your watch, its accuracy is subject
to the influence of gravity, magnetic fields,
accidental impacts, and the ageing of the oils.
The accuracy of a watch is measured by its
regularity of rate in various positions.
1Hour hand
2Minute hand
3Seconds hand
4Date
5Crown A: Setting the time and winding
6Crown B: Setting the city
7Corrector C: Setting the date
8City disc
924-hour disc
10 Hour and minute of the favoured time zone
11 Power reserve

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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 22810/NIHS 92-10
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:

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ENGLISH
- 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.

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- 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.
“1,000 Hours Control” test
Jaeger-LeCoultre submits all its watches to
the stringent “1,000 Hours Control”, a series
of comprehensive and rigorous internal tests
lasting a full 1,000 hours.
The “1,000 Hours Control” seal, placed or
engraved on the back of your watch, certifies
that the timepiece has successfully passed all the
tests relating to regularity of rate, temperature,
atmospheric pressure, and resistance to
shocks and magnetic fields, as well as water-
resistance trials. Thus, your watch is capable of
withstanding the daily stresses and strains. The

29
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criteria of the “1,000 Hours Control” programme
considerably exceed the standards of official
timing tests, which deal only with part of the
movement.
Jaeger-LeCoultre tests not only the movement
prior to being cased up in the watch, but also
the watch once it has been assembled.
Technical specications
- Automatic mechanical Manufacture movement,
Jaeger-LeCoultre Calibre 936A/1
- 28,800 vibrations/hour
- Power reserve: at least 38 hours
- Water-resistant to 10 bar
Movement
Jaeger-LeCoultre Calibre 963A/1.

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Functions
Thanks to a mechanically powered disc indi-
cating the 24 time zones of the international
GMT system, your Jaeger-LeCoultre Polaris
Geographic WT watch features a display of
multiple parts that indicate:
- The time (in hours, minutes and seconds) and
date where you live, i.e. local time.
- Universal time, i.e. the simultaneous reading of
the time in each of the world’s 24 time zones.
- The hour and minute of the city you choose as
the “favoured time zone”, in the small dial at
6 o’clock.
- The power reserve, which enables you to
control the winding level of your watch at all
times.
Use
Crown A at 3 o’clock enables the user to:
- Wind the watch if it has not been worn for
more than 38 hours.

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- Set the local time and the reference time
depending on the position the crown is in
(with the time in the 24 time zones and in
the small dial of the favoured time zone
automatically changing as a result).
- Synchronise the local time with the time of all
the time zones.
Crown B at 10 o’clock enables the user to:
- Turn the city disc and the 24-hour disc.
- Choose the desired city as the favoured time
zone, by positioning it opposite the triangular
marker located at 6 o’clock. This operation
automatically sets the corresponding time in
the favoured time zone indicated on the small
dial at 6 o’clock.
Corrector C at 2 o’clock enables the user to:
- Set the date.
- Adjust the date for months with fewer than
31 days.

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120
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.
The power-reserve hand allows you to control
the winding level of your watch at all times.

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SETTING THE HOUR, MINUTES, AND
SECONDS (LOCAL TIME)
Pull Crown A out to position 2. The movement
is then locked (“stop seconds” function).
For an exact setting, position the seconds hand
at 12 o’clock.
Move the hands clockwise to the desired time,
by passing 12 o’clock. If the date changes, it is
midnight; if not, it is midday.
When the operation is complete, push the
crown back to position 0. The watch starts
running again.
SETTING THE DATE
By pressing corrector C with the tool supplied
with your watch, advance the date manually
until the correct date is displayed.
Note: never try to adjust the date between the
hours of 8.30 pm and 3.30 am. This is because
the automatic date-change mechanism is
already in action between these times.

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WORLD TIME AND FAVOURED TIME ZONE
FUNCTIONS
Your Jaeger-LeCoultre Polaris Geographic
WT watch also features an ingenious system
of world time display that can tell the time
simultaneously in 24 cities in the world.
The simultaneous reading of the time in the
world's 24 time-zones is possible thanks to the
combination of the city disc and the 24-hour
turning ring.
Additionally, the Jaeger-LeCoultre Polaris
Geographic WT makes it possible to read the
time, on the small dial at 6 o’clock, of a given
city corresponding to one of the 24 time zones
(the favoured time zone). The wearer selects
it by turning the city disc and positioning the
city of the favoured time zone opposite the
triangular marker at 6 o’clock. The time of the
favoured time zone thus appears twice: once
on the small dial located at six o’clock, as well
as on the 24-hour ring, which makes it possible
to know whether it is day or night.

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For example:
Select Athens as the city for the favoured time
zone.
Turn the city disc and position Athens opposite
the triangle located at 6 o’clock. You can thus
see the time in Athens:
- On the 24-hour disc: 5 pm.
- On the small dial.
Moreover, you can read the time that corres-
ponds to the world’s other time zones. The
simultaneous reading of the 24 time zones can
be done by reading the number on the 24-hour
ring opposite the relevant city: it is 4 pm in
Paris, 3 pm in London, 8 pm in Karachi.

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Pre-setting: synchronising the reference time
with the mechanism of the multiple time zones
Reading the universal time and the favoured
time zone requires pre-setting that consists of
determining a reference time for the mechanism.
This step needs to be carried out only once,
as long as the reference time zone remains
unchanged. However, this setting operation will
be necessary once again if, while travelling, you
change time zones and wish to adopt your new
time as reference time.
- 1st operation (choosing the reference city by
means of the city disc):
Wind Crown B (at 10 o’clock) without pulling it,
in either direction.
Position the city corresponding to the reference
time zone opposite the triangular marker
located at 6 o’clock.
The hour hand of the small dial will automatically
move, while the minute hand of the small dial
remains synchronised with the large minute
hand.

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- 2nd operation (setting the reference time on
the small dial):
Pull Crown A (at 3 o’clock) out to position 1.
Turn the crown in either direction to move the
hour hand of the favoured time zone, together
with the 24-hour ring.
Adjust the hour in the small dial in order to
obtain the same time as the main time and to
display this hour opposite the triangular marker
at 6 o’clock, taking into account whether it is
day or night.
Push the crown back in to position 0.
The displays of the main dial and the small dial
are now synchronised: the central hands, the
small dial and the selected city opposite the
triangular marker at 6 o’clock now indicate the
same time.
Once this pre-setting is completed:
- The 24-hour ring will turn in unison with the
main time (local), but will go round the dial
once in 24 hours. The time in each city will
be updated in accordance with the local time
and the favoured time zone.

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- You can thus read the time in any of the cities
indicated on the city disc by reading the hour
opposite the relevant city on the 24-hour ring,
with the minutes indicated on the main dial.
Note: Regions where the official time differs by
a fraction of an hour (India, Iran, Nepal) are not
included in the city disc.
Changing the favoured time zone
Note: first make sure that the synchronisation
crown (Crown A at 3 o’clock) has been pushed
back into position 0 (not pulled out). Failure
to follow this instruction could damage the
mechanism.
Turn Crown B (without pulling it) in either
direction in order to position the new city chosen
as the favoured time zone at 6 o’clock, opposite
the triangular marker. The time in the selected
time zone is automatically displayed in the small
dial and, thanks to the hour indicated on the
24-hour ring opposite the relevant city, you can
determine whether it is morning or afternoon.

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Special cases: summer and winter times
In certain countries, local time moves forward
by an hour during the summer months. Your
Jaeger-LeCoultre Polaris Geographic WT watch,
which is mechanically programmed, does not
take these local specificities into account.
In order to factor these in, the city disc of
your Jaeger-LeCoultre Polaris Geographic WT
displays a “ ” symbol to the left of each city
affected by summer time. This function makes
it possible to read summer time, if applicable.
The diagram overleaf illustrates this system:
Athens, Paris, and London are cities whose time
zones apply summer time. Consequently, the
“ ” symbol to their left suggests summer time.
For example, as Paris summer time, corresponds
to winter time in Athens, the “ ” symbol for Paris
is positioned above the Athens time zone on
the city disc and indicates French summer time.
However, the Dubai time zone does not apply
summer time; there is therefore no symbol.

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If you live in a country which adopts summer
time, the following setting will be necessary.
When you change from winter to summer time,
please proceed as follows:
- While turning Crown B (at 10 o’clock), position
the “ ” symbol found to the left of the city
that corresponds to the time zone in which
you find yourself (reference city) opposite the
triangular marker at 6 o’clock.
- Pull Crown A out to position 2 and wind
forward one hour to display the time in the
reference city.
- Push Crown A back to position 1 and wind
the time in the small dial back by one hour
(counter-clockwise) in order to display the
same time as on the main dial.
- Push Crown A back to position 0.

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- You can thus read the time in any of the 24
time zones by looking at the hour on the
24-hour ring opposite the “ ” symbol for
the relevant city, if summer time is applicable
there.
When changing from summer time to winter
time:
- While turning Crown B (at 10 o’clock), position
the city that corresponds to the time zone
in which you find yourself (reference city)
opposite the triangular marker at 6 o’clock.
- Pull Crown A out to position 2 and wind back
one hour to display the winter time in the local
city.
- Push Crown A back to position 1 and wind the
time in the small dial forward by one hour.
- Push Crown A back to position 0.
- You are again synchronised with universal
time.
- You can thus read the time in any of the 24
time zones by looking at the hour on the 24-
hour ring opposite the name of the city in
question.