About this caliber
Automatic movement based on LaJoux-Perret 6901. Available both with and without date - the former being reference BWC/01-10.
Automatic with 25 jewels, Glucydur balance, Nivarox CT balance spring and Nivaflex 1 mainspring. Highly efficient double reverser bi-directional winding mechanism to achieve 28,800bph and 50+ hour power reserve.
Pictured as used in the Wright Flyer.
Technical details
- Movement
- AUTOMATIC
- Display
- Analog
- Jewels
- 25
- Power reserve
- 50 hours
- Frequency
- 28,800 vph (4.0 Hz)
- Hands
- Hands: Hours, Minutes, Small Seconds
Chronometer
- Diameter
- 33.4 mm
- Height
- -
- Parts
- -