Jaeger-LeCoultre
Calibre 939
Automatic
Specifications
- Maker
- Jaeger-LeCoultre
- Type
- Automatic
- In-house
- Yes
- Power reserve
- 70 h
- Frequency
- 28,800 vph (4 Hz)
Sources
- Official Jaeger-LeCoultre retrieved October 16, 2026
Used in
| Watch | Ø | Thickness | Lug-to-lug |
|---|---|---|---|
| Jaeger-LeCoultre Master Control Geographic Q4128421 | 40 mm | 10.96 mm | — |
| Jaeger-LeCoultre Polaris Geographic Q9078640 | 42 mm | 11.54 mm | — |