Calibre record
Valjoux 7750
Documented
Designed by Edmond Capt at Valjoux (now ETA, Swatch Group); among the most widely used mechanical chronographs. Listed here under Swatch Group lineage; maker profile for Valjoux/ETA under research.
- Type
- Automatic chronograph
- Production
- 1974–present
- Country
- Switzerland
- Diameter
- 30 mm (13¼ lignes)
- Jewels
- 25
- Frequency
- 28,800 vph (4 Hz)
- Power reserve
- c. 42–48 hours
- Escapement
- Detached lever escapement
- Complications
- Cam-actuated chronograph, day-date