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One special feature of this flyback system is that it does not
halt the operation of the regulating organ. The small seconds
hand is reset to zero and begins running again instantly. This
means the watch maintains optimal precision even when
accurately adjusting the time to the nearest second.
A multi-axis tourbillon
Above and beyond its exemplary reliability, the chief characte-
ristic of this Sphérotourbillon watch is its tourbillon.
The openworked dial provides a fascinating view of the tour-
billon performing an extremely unusual rotation movement.
As well as revolving around the axis of its titanium carriage,
the tourbillon also spins around a second axis, inclined at a 20°
angle. The combination of these two distinct and fast rotations
(respectively 30 and 15 seconds per revolution) serves to free
the watch from the effects of gravity.
This spectacular tourbillon incorporates all the innovations
that enabled Jaeger-LeCoultre to win a brilliant victory in
the first official timing competition of the 21st century. The
carriage machined from a single block of titanium featu-
res a combination of lightness and extreme precision. The
cylindrical balance-spring with its two terminal curves beats
with a concentricity impossible to achieve with a traditional
balance-spring. The balance with its generous inertia oscilla-
tes at a cadence of 21,600 vibrations per hour. The balance-
spring stud-holder is protected by a screw-locking system
from the effects of shocks and vibrations to which the watch
is subjected.
An exceptional design
This technological complexity nonetheless remains extremely
beautiful. The innovative spirit of the watch merges with an
inspired design inspired by vintage pocket-watches and desi-
gned to endow it with a blend of elegance and refinement.
The level of finishing of the ébauches made in non-treated
nickel silver accentuates the sense of exclusivity exuded by the
Duomètre à Sphérotourbillon. Jaeger-LeCoultre’s signature
.
“côtes soleillées”, clean-cut exterior and internal angles, har-
monious shapes: the appearance of Jaeger-LeCoultre Calibre
382 is the very epitome of the watchmaking art.
Demonstrating profound respect for ideal proportions and
watchmaking design codes, expressed through the sophisti-
cated pink gold case, the restrained, highly readable dial, the
polished bezel and lugs, and the satin-brushed case middle, the
signature aesthetic characteristics of the Duomètre are meti-
culously preserved in this model and create a striking contrast
with the level of complexity of the movement housed within.
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