La Joux-Perret · G100 series
G100
A Swiss automatic combining a 4 Hz beat rate with a longer 68-hour reserve.
At a glance
- Type
- Automatic mechanical
- Display / complication
- Date
- Architecture
- Unidirectional automatic winding
- Timebase
- 28,800 vph / 4 Hz
- Power reserve
- 68 h
- Movement height
- 4.45 mm
- Jewels
- 24
Reference sources reviewed 7 November 2026. Published specifications, not independent measurements. Versions and complete-watch specifications can differ; fields without a verified figure are omitted or identified.
What distinguishes it
Look beyond the reference.
A useful example of extending running time without lowering the balance frequency. Compare it with the SW200-1 and ETA 2824-2.
For the enthusiast
The manufacturer lists dimensional compatibility with ETA 2824 and SW200. Treat that as a starting point for casing research, not a blanket guarantee of interchangeable parts.