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

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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

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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.

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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

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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-

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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

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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.

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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

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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