Jaeger-LeCoultre 925
High confidenceThe moon-phase display is the identifying feature and is visible from the dial, which makes this one of the few JLC calibers confirmable without opening the watch. Its accuracy specification — the disc drifting by a day only after a long interval — is a property of the gearing and is not something an examination can verify in the room.
Specifications
- Movement manufacturer
- Jaeger-LeCoultre
- Frequency
- 28,800 vph (4 Hz)
- Power reserve
- 43 hours
- Winding
- automatic
- Complications
- Centre seconds · Date · Moon phase
Architecture
Ultra-thin automatic with a moon-phase and date complication, made for the Master Ultra Thin Moon.
References using this caliber
- Jaeger-LeCoultre Q1368470Factory
Master Ultra Thin · Whole production
Provenance of this record
Sources & Evidence
Primary sourceManufacturer documentation
Jaeger-LeCoultre — collection and caliber specifications
Jaeger-LeCoultre
- Accessed
- 2026-08-18
Cited for
This referenceHigh confidence
Last verified: Not yet reviewed