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Technical specifications
- Manually-wound mechanical movement, Jaeger-LeCoultre Calibre 383
Dual-Wing.
- 28,800 vibrations/hour.
- Power-reserve: approximately 50 hours.
- Power-reserve of second time zone: approximately 50 hours.
- Water-resistance: Water-resistant to 5 atm.
Movement
Jaeger-LeCoultre Calibre 383.
Important note regarding the power-reserves of the Calibre 383 Dual-Wing.
The Dual-Wing movement of the Duomètre Unique Travel Time watch model
comprises two barrels. The first barrel provides a 50-hour power-reserve for
the watch’s time function. The second barrel, independently of the first, provides
a 50-hour power-reserve for the second time zone. The functions thus do not
cause any loss of energy or isochronism in the escapement. The power-reserve
for the time function can be read on the hand between 4 and 5 o’clock. The
power-reserve for the second time zone can be read on the hand between
7 and 8 o’clock.
In both cases, the power-reserve is at its maximum when the hand is positioned
opposite the “+” symbol. As energy is consumed, the hand will gradually point
towards the “-” symbol. When the hand is opposite the “-” symbol (after ap-
proximately 50 hours), this indicates that the power reserve has been exhaust-
ed. This is the last chance to wind up the watch without losing the settings.
