Jaeger-leCoultre REVERSO ONE User manual

ENGLISH
CONTENTS
Introduction 25
Accuracy and precautions for use 32
Water resistance 33
“1000 Hours Control” test 35
Care instructions for leather straps 36
Technical specifications 37
Use 38
International Guarantee 43
Limited Warranty 47
(United States of America and Canada)
Guarantee for Australia 51
Customer Service 56

24

ENGLISH
25
INTRODUCTION
We would like to thank you for the con-
fidence 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 operat-
ing instructions and hope your Jaeger-
LeCoultre timepiece brings you great joy.
REVERSO HYBRIS ARTISTICA
CALIBRE 179
In the great tradition of complication
pieces, the watchmaking expertise of
Jaeger-LeCoultre Manufacture is yet again
seen in an exceptional piece: the Reverso
Hybris Artistica Calibre 179.
This watch belongs to the Hybris Artistica
lineage – a collection of models as fasci-
nating for their beauty as for their techni-
cal virtuosity – that embodies the watch-
making expertise and artistic know-how
of the Grande Maison. The expertise of our

26
Atelier des Métiers Rares® craftsmen takes
this exceptional timepiece to a whole new
level.
The Manufacture’s master watchmakers
poured all their talent into creating this
watch, pushing the boundaries of inno-
vation by incorporating a remarkably-
proportioned Gyrotourbillon fitted with
the Duoface system that characterizes
Jaeger-LeCoultre’s Reverso. The miniatur-
ization process used on its components
has enabled a thickness of just 13.6 mm
for such a technically complex watch.
GYROTOURBILLON
Within the manually wound Jaeger-
LeCoultre Calibre 179, the fascinating Gy-
rotourbillon performs its rotations through
an external supporting system, giving the
impression that it is suspended in the air
inside the caliber. The exquisitely worked
decoration of its inner carriage was exe-
cuted in line with the most rigorous watch-
making tradition.

ENGLISH
27
Its outer carriage is ultra-light and gener-
ously dimensioned, completing a full rota-
tion around its axis every sixty seconds.
The inner cage – which supports a large
Gyrolab variable inertia balance wheel, a
semi-spherical balance spring, and the es-
capement – rotates much more quickly:
in fact, each complete turn on its axis re-
quires exactly 16 seconds, adding up to the
equivalent of 3.75 revolutions per minute.
This rotation speed means not only that
the balance wheel is visible every minute
through the crystal so its beauty can be
admired, but it also provides exceptional
running precision, as it is independent of
the watch’s position.
THE DUOFACE CONCEPT
COMBINED WITH THE RARE
HANDCRAFTS “MÉTIERS RARES”
On the front, the Reverso Hybris
Artistica Calibre 179 is a subtle remind-
er of the Art Deco geometric motifs that
were integral to the original design of the

28
Reverso. The hand-applied blue lacquer
decoration is set o by interlacing gold
lines that enhance the deep blue gradi-
ent of the time display. The seconds are
read in a novel way thanks to a graduated
disc that rotates at the same speed as the
Gyrotourbillon. On its left-hand side, it
features a little red arrow that points to
the second.
Unexpectedly, the back of the Reverso
Hybris Artistica Calibre 179 reveals a style
quite distinct from the front. The finely
skeletonized hour and minute ring and
the bridges that support it are covered
in blue lacquer, underlining the dial’s light
aesthetic. The level of decoration and fin-
ishing reflects the fusion of technology
and tradition: laser skeletonization, cham-
fering, and lacquering by hand. This is fur-
ther proof of Jaeger-LeCoultre’s profound
commitment to tradition as it continues to
explore innovative approaches in parallel.
The second time zone and the Gyrotour-

ENGLISH
29
billon stand out against the skeletonized
movement. Continuing its exploration of
this reverse face, your eye meets a 24-
hour day/night indicator at 2 o’clock, as
well as the small seconds indicator by the
tourbillon.
When the finger turns over the case, it re-
veals a cradle decorated with a sunburst
motif combined with a blue lacquered disc
which, placed precisely under the Gyro-
tourbillon, subtly reflects the play on light.
A QUEST FOR ACCURACY
In a bid to improve the Gyrotourbillon’s
accuracy even further, the Manufacture’s
watchmakers have made adjustments to
the height of the carriage so the regulat-
ing organ could be redesigned. It holds a
large-sized variable inertia Gyrolab bal-
ance wheel, and because of its non-circular
configuration, the eects of air friction are
reduced. Drawing its form from Jaeger-
LeCoultre’s anchor symbol, this piece con-
stitutes a ground-breaking innovation in

30
terms of watch accuracy. Its hand-crafted
blued balance spring is of semi-spherical
shape to further advance the quest for
precise time-keeping. The Reverso Hybris
Artistica Calibre 179 watch is yet more
proof – if proof is needed – of Jaeger-
LeCoultre’s mastery in the realm of the
Queen of complications: The Tourbillon.
THE POWER RESERVE
The Calibre 179 features two barrels that
enable a power reserve of 40 hours.

ENGLISH
31
1
2
3
4
7
6
5
1Hour hand
2Minutes hand
3Crown
4, 5 Seconds indicator
on the Gyrotourbillon
6Time in the second
time zone
724-hour indication

32
ACCURACY AND
PRECAUTIONS FOR USE
MANUALLY-WOUND OR AUTOMATIC
MECHANICAL WATCHES
The accuracy of watch models with me-
chanical movements is determined by the
balance wheel. This oscillates at a rate of
21,600 vibrations per hour. Despite all the
care that the master watchmakers of the
Jaeger-LeCoultre Manufacture have lav-
ished on building and assembling your
watch, its accuracy is subject to the influ-
ence of gravity, magnetic fields, acciden-
tal impacts, and the aging of the 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 work-
ing of your timepiece. If you observe a dis-
crepancy in the way your watch runs, we
advise you to entrust it to an authorized
Jaeger-LeCoultre retailer who will make
the necessary adjustments. Watches with

ENGLISH
33
mechanical movements must not be used
for sports involving significant risk of im-
pact or abrupt actions, such as golf or
tennis.
WATER RESISTANCE
Your Jaeger-LeCoultre watch is water-re-
sistant to 3 bar. Its water resistance can be
identified by the symbol and/or the
engraving: “3 bar” on the caseback. This
means that your model has been tested at
an overpressure of 3 bar, corresponding to
an immersion pressure of 30 meters (1 bar
= ±10 meters).
In accordance with the ISO 22810/NIHS
92-20 standard, in order to guarantee the
durability of the watch’s characteristics
over time, and as water resistance may be
aected by certain activities, it is recom-
mended that you:
- have the watch’s water resistance
checked by an authorized Jaeger-
LeCoultre retailer at least once every two

34
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 excessive-
ly abrupt temperature changes.
- protect the watch from being dropped
or suering 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.

ENGLISH
35
- 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 immer-
sion pressure and do not engage in any
water sports that could cause impacts.
This watch is not a piece of diving equip-
ment and should not be used as such.
Also, note that leather straps are not suit-
ed for aquatic activities.
“1000 HOURS CONTROL”
TEST
The Jaeger-LeCoultre Manufacture pays
close attention to the quality and final
checks of its watches.
The 1000 Hours Control is a series of in-
ternal qualification tests for each of the
models in our collection, as well as inter-
nal tests on the production of your watch,
which go beyond ocial timing tests.

36
These tests include checks of the move-
ment before and after being cased up
in the watch and cover the whole watch
once it has been assembled, in the condi-
tions 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 under-
gone 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.
CARE INSTRUCTIONS
FOR LEATHER STRAPS
1. Keep the leather strap in a dry place
2. Avoid contact with water, cosmetics,
perfumes, alcohol, and oily materials

ENGLISH
37
3. To prevent leather from discoloring,
avoid wearing the watch:
- in a very humid environment
- during sporting activities: sweat da-
mages the leather
- in prolonged exposure to sunlight
4. Wipe with a soft dry cloth. Do not dry in
direct sunlight or near heat sources
TECHNICAL
SPECIFICATIONS
- Manually wound mechanical
Manufacture movement,
Jaeger-LeCoultre Calibre 179.
- Gyrotourbillon.
- 21,600 vibrations per hour.
- 40-hour power reserve.

38
USE
10 2
WINDING
Crown in position 0.
Turn the crown clockwise to wind up the
watch. It is fully wound when the crown
locks.
Do not attempt to wind a manually-
wound watch beyond the locking point.
To ensure good operating accuracy, it is
advisable to wind your watch regularly.

ENGLISH
39
SETTING THE HOURS AND MINUTES
Pull the crown out to position 2.
Set the reference time by moving the
hands clockwise until the desired time is
displayed, taking the day/night indicator
into account.
The hour and the minute are adjusted si-
multaneously on the face and the reverse.
For optimum accuracy, it is recommended
to turn the hands both ways when setting
the time, exceeding the desired time by 10
minutes and then turning the crown an-
ticlockwise to return to the desired time.
This operation allows the gears to mesh
well and ensures better precision.
Then push the crown back to position 0.
The watch starts running again.

40
ADJUSTING THE SECOND TIME ZONE
ON THE REVERSE OF THE WATCH
In the GMT (Greenwich Mean Time) system
used practically throughout the world, the
earth is divided into 24 time zones, each
corresponding to 15 degrees of longitude
(see table below).
In each of these time zones, the ocial
time is the same and it changes by one
hour when moving from one zone to the
next.
Setting out from the Greenwich meridi-
an, the central or 0 point of time zones,
12 zones have been defined from +1 to
+12 hours moving eastward, and 12 others
from 0 to -11 hours moving westward.

ENGLISH
41
-11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +10 +11 +12
To set the second time zone of your Re-
verso, turn over the case of your watch to
show the dial on the reverse.
Pull the crown out to position 1.
Set the time in the second time zone by
moving the crown until the desired time
is displayed, taking the 24-hour indicator
into account. The hour hand on the front
face moves in 1-hour jumps.
(The crown can be turned in either direc-
tion, depending on whether you wish to
move the time in the second time zone
forward or backward).
As a reminder, the minutes are displayed
identically on both of the dials. It is not

42
possible to indicate a time dierence of a
fraction of an hour, as is the case in some
regions of the world (India, Iran, Nepal).
When the operation is complete, push the
crown back to position 0.
SECONDS INDICATOR
On the front face, the cursor indicates the
seconds precisely thanks to the train track
that encircles the outer edge of the Gyro-
tourbillon.
On the reverse, the cursor enables you to
measure short time intervals with the help
of the graduation it shows.