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JLC 923

Calibre 923 is an automatic dual timezone watch movement from Jaeger-LeCoultre.

Based on Calibre 899, Calibre 923 incorporates many changes. Most obvious is the world timer mechanism, which functions more as a dual timezone readout than a true worldtimer since only a few timezones are visible at once. Also different is a uni-directional winding mechanism similar to the "Autotractor", which is more efficient, with ceramic bearings. A larger barrel provides 45 hours of power reserve, and the mechanism is more efficient thanks to re-contoured gears. Additionally, fine adjustment can be made with four regulator screws.





  • Diameter 29 mm
  • Height 4.9 mm
  • 31 jewels
  • 28800 A/h
  • Power reserve 45 Hours

Production period:

jlc_923.txt · Last modified: 02.12.2022 20:38 by

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