Jaeger-leCoultre 868 User manual

ENGLISH
Table of Contents
Introduction 21
Accuracy and precautions for use 21
Water resistance 22
“1000 Hours Control” test 24
Technical specifications 25
Movement 26
Functions and displays 26
Use 29
International Guarantee 35
Limited Warranty 39
(United States of America and Canada)
Guarantee for Australia 43
Jaeger-LeCoultre Customer Service 47

20
1
2
6
5
3
4
11
10
9
7
8
1Moon phases
2Minute hand
3Aperture indicating the security zone
4Crown
5Date
6Month
7Year
8Corrector
9Second hand
10 Day
11 Hour hand

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ENGLISH
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.

22
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 5 bar. Its water resistance can be identified
by the symbol and/or the engraving: “5
bar” on the case-back. This means that your
model has been tested at an overpressure of
5 bar, corresponding to an immersion pressure
of 50 metres (1 bar = ±10 metres).
In accordance with the ISO 22810/NIHS 92-20
standard, in order to guarantee the durability
of the watch’s characteristics over time, and

23
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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.

24
- 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
production of your watch, which go beyond
official timing tests. These tests include checks

25
ENGLISH
of the movement before and after being cased
up in the watch and cover 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 specications
- Self-winding mechanical movement,
Jaeger-LeCoultre Calibre 868.
- 28,800 vibrations/hour.
- Power reserve: approximately 38 hours.

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Movement
Jaeger-LeCoultre Calibre 868.
Functions and displays
The watch oers the following functions:
- Hours
- Minutes
- Seconds
- Date
- Day
- Month
- Year
- Moon-phases
- Perpetual Calendar
- Security zone indication

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ENGLISH
The perpetual calendar has a mechanism that
takes into account the length of the current
month (28, 30 or 31 days), and counts a 29th
February every leap year. The date, day of the
week, month, year, and moon phase are therefore
indicated mechanically, without the slightest
need for readjustment until 1 March 2100.
All these are interlinked by the ingenious
mechanism of a genuine, entirely mechanical
programme: merely changing the initial date
thus eects the appropriate changes in all
other functions.
Our time measurement is based on the
Gregorian calendar, i.e. a year of 365 days,
5 hours, 48 minutes, and 46 seconds, or
in decimals, 365.242192 days. In practice,
the yearly excess of just less than a quarter
(0.242192) of a day is corrected by the 29th
February in leap years. The few missing
decimals are then compensated for every 100
years, by excluding 29th February.
For the sake of greater precision, this exclusion
does not take place when the number of

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centuries is divisible by 4. Such is the case for
the years 2000 and 2400 (centuries divisible
by 4), which are both regular leap years.
It is therefore only in the year 2100 that the
programming of your perpetual calendar will
need to be corrected. Until that date, your
watch will count days, months, and decades.
On 1 March 2100, the calendar will indicate
Monday, 29th February, whereas in fact it will
be Monday, 1st March. A watchmaker will then
have to set your watch to the correct date,
together with the moon phase, which varies by
one day in every 122 years.
The Master Ultra Thin Perpetual’s crown allows
you to:
- Wind the watch if it has not been worn for
more than 38 hours.
- Set the desired time.

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Use
01
WINDING
Your Master Ultra Thin Perpetual watch is
equipped with a 38-day power reserve, during
which time it can operate without any addi-
tional winding.
Crown in position 0.
A few clockwise turns of the crown are enough
to set the watch running. It will then automat-
ically wind up when you wear it. Please note
that the crown does not lock during winding,
even when the watch is fully wound.

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SETTING THE HOURS AND MINUTES
Pull the crown out to position 1.
Move the hands clockwise until the desired
time is displayed. When the hands are display-
ing times during the night between 8 p.m. and
4 a.m., with what is known as the security zone
in red, you must never:
-Turn back the hour or minute hands.
-Perform a date correction.
When the operation is complete, push the
crown back to position 0.
Special nature of the four-digit year indicator
The year is indicated via four positions. The
display of the year’s first two digits (the centu-
ry) is fixed. It consists of a small two-position
plate, screwed onto the movement, which can
indicate “20” or “21”. The decade display con-
sists of two discs which run through the posi-
tions from “00” to “99” according to the per-
petual calendar mechanism. On 1 January 2100,
the watch will therefore indicate the year 2000
(fixed “20” + “00”). We advise you to wait un-
til 1 March 2100 before submitting your Master

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Ultra Thin Perpetual watch to an authorised
watchmaker, so as to have the year plate set to
position “21”, while the necessary adjustments
are made to the date and the moon phase.
SIMULTANEOUS CALENDAR
(DAY, DATE, MONTH, AND YEAR)
AND MOON PHASE ADJUSTMENT
This operation is entirely controlled by a sin-
gle corrector located at 8 o’clock, which can be
operated via the corrector tool supplied with
the watch. Each press of the tool moves the
calendar one day forward. Therefore all that’s
needed is to set the initial calendar by pressing
the push-piece until the corresponding date
and month are displayed, to ensure that the
day, date, month, year, and moon phase pro-
gramme run correctly thereafter.
We remind you that you should not:
- Perform this calendar correction between 8
p.m. and 4 a.m..
- Move the calendar forward beyond the cur-
rent date. The movement is programmed me-
chanically and cannot be adjusted by moving

32
the date backward. If the calendar is acciden-
tally moved forward beyond the current date,
you have two options:
- Wait for the power-reserve to run out. The
watch will stop.
- Wait until the day of the inadvertently pro-
grammed date before winding the watch.
To set your Master Ultra Thin Perpetual watch,
there is no need to know whether or not the
year is a leap year, nor the current moon phase.
Nor is it necessary to set the day of the week,
because this data is automatically programmed
in your watch.

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ADJUSTING THE WATCH WHEN CHANGING
TIME ZONES (OR WHEN SWITCHING FROM
DAYLIGHT SAVING TIME TO WINTER TIME
AND VICE VERSA)
Pull the crown out to position 1.
-If you are travelling towards the East, move
the hour forward to display the new local time.
-If you are travelling towards the West, turn the
hands back, but without ever going beyond
4 a.m., at which point the red security zone
reappears in the aperture. If this situation
arises, wait to make the correction until a time
when this is possible.
ADJUSTING THE WATCH FOR
A DATE CHANGE
Pull the crown out to position 1.
When changing date while travelling towards
the West, such as going from America to Asia,
you move on to the next day:
- Adjust your watch by moving the hands for-
ward until you reach the following day and
the local time.

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- You can also use the corrector push-piece to
move the date forward.
When changing date while travelling towards
the East, you move back to the previous day:
In this case, however, the watch will indicate
one day earlier.
This date display error can be corrected by
twice turning the hands back by 12 hours each
time, so as not to go back beyond the security
zone (i.e. between 8 p.m. and 4 a.m.).
The correction is performed as follows:
- The first 12-hour windback is performed in
the afternoon between 4 p.m. and 8 p.m. For
example, if you perform this operation at 8 p.m.,
the day/night indication dial of your watch will
show 8 a.m. instead of 8 p.m. after this first turn.
- The second 12-hour windback is performed
the following morning between 4 a.m. and 10
a.m. For example, if you perform this operation
at 8 a.m., your watch will once more display
8 a.m. (current time with the correct date).
The date indicator will once more be syn-
chronised with the local date.

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ENGLISH
Jaeger-LeCoultre watches
In order to benefit from the International Guar-
antee and/or the Limited Warranty and/or the
Manufacturer’s Guarantee for Australia, Jaeger-
LeCoultre products must be purchased exclu-
sively from authorised Jaeger-LeCoultre retail-
ers or from Jaeger-LeCoultre Boutiques. Main-
tenance 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 con-
ditions are not met, the manufacturer’s guar-
antee 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)

36
and Australia (for this country, refer to the
Guarantee for Australia).
TERMS AND CONDITIONS OF
THE J AEGER-LE C OULTRE
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 re-
sult 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 guar-
antee 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 Guaran-
tee does not cover defects resulting from ac-
cidents, mishandling, or incorrect, abusive use
(for example, knocks, dents, crushing, excessive

37
ENGLISH
temperatures, powerful magnetic fields), the
use of or eect of using batteries other than
those designated by Jaeger-LeCoultre, unau-
thorised 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 de-
pending on the model) engraved on the case-
back. Their water resistance is guaranteed for
two years from the date of purchase, provid-
ed 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 Bou-
tique, or authorised Jaeger-LeCoultre Service

38
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 un-
der applicable national legislation governing
the sale of consumer goods; those rights are
not aected by this guarantee.