ETA · Valjoux
7750
The Valjoux automatic chronograph reference, with day-date in its standard configuration.
At a glance
- Type
- Automatic mechanical
- Display / complication
- Chronograph
- Architecture
- Cam-operated chronograph, unidirectional automatic winding
- Timebase
- 28,800 vph / 4 Hz
- Power reserve
- 54 h typical
- Movement height
- 7.90 mm
- Jewels
- 25
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.
The movement measures elapsed seconds, minutes and hours while retaining a separate running-seconds display. Its cam-based control is a useful counterpoint to column-wheel chronographs: both organise start, stop and reset, through different mechanisms.
For the enthusiast
The standard specification includes two pushers, quick calendar correction and stop seconds. ETA’s current portal gives 54 hours typical reserve. Brand derivatives and older watches can have different specifications; a familiar subdial layout is not enough to identify the exact calibre.