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Duomètre à Sphérotourbillon
Technical specifications
- Manually-wound mechanical movement, Calibre 382.
- 21,600 vibrations/hour.
- Power reserve of the regulator: approximately 45 hours.
- Power reserve of the functions: approximately 45 hours.
Movement
Important remark regarding the power reserves of the
Calibre 382 Dual-Wing of the Duomètre à Sphérotourbillon
watch model.
The Dual-Wing movement of the Duomètre à Chronographe
watch model comprises two barrels. The first barrel provides
the watch’s regulator (regulating organ) with 45 hours of power
reserve. The second barrel, which is independent from the first,
provides all the watch’s functions with 45 hours of power reserve.
The power reserve of the regulator is read off by means of
the blue hand situated at 1 o’clock and marked “regulator”. The
power reserve of the regulator is read off by means of the hand
situated at 5 o’clock and marked “hour”.
In both cases, the power reserve is at its maximum when
the hand is positioned opposite the “+” symbol. As energy is
Jaeger-LeCoultre Calibre 382
consumed, the hand will gradually point towards the “-” sym-
bol. When the hand is opposite the “-” symbol (after approx-
imately 45 hours for both the escapement and the functions), this
indicates that the power reserve has been exhausted. This is the
last chance to wind up the watch without losing the settings.
Both barrels can be wound using crown A, in position 1.
Turning the crown counter-clockwise winds the regulator bar-
rel, thereby increasing its power reserve.
Turning the crown clockwise winds the functions barrel, thereby
increasing its power reserve.
Important:
Although the two power reserves are independent, it is vital
that both are wound before the timepiece can be used.
If one of the power reserves is depleted, the movement will
stop (no damage will be caused to the movement). It will thus
be necessary to wind the two power reserves according to the
instructions to restart the calibre.
