Valjoux 7768

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Remarks:

Chronograph cam-actuated: 60 s (center second), 30 min counter at 12 H
Small seconds at 9 H with hacking
Moon phase with quick setting at middle crown position
Date at 3 H with quick setting at middle crown position
Balance with screwed hairspring stud was later replaced by ETA with Etachron system
The hour counter lock is made of plastic, but was replaced by a metal version in later versions
Base movement: Valjoux 7760
Movement family (all are chronographs, Valjoux was renamed ETA starting in 1983):
- Valjoux / ETA 7750: Automatic, date, day
- Valjoux / ETA 7751: Automatic, pointer date, day, month, moon phase, 24 h indicator
- Valjoux / ETA 7753: Automatic, date at 4:30H, 30 min counter at 3H
- Valjoux / ETA 7754: Automatic, date at 3H, central 24 h indicator, 30 min counter at 12H
- Valjoux / ETA 7758 / 7750 CCL: Like 7750, with moon phase
- Valjoux / ETA 7760: Hand winding, date, day, 30 min counter, 12 hour counter
- Valjoux / ETA 7761: Hand winding, pointer date, day, month, moon phase, 30 min counter, 12 hour counter
- Valjoux / ETA 7765: Hand winding, date
- Valjoux / ETA 7768: Like 7760, but moon phase instead of day
- Valjoux / ETA 7770: Automatic, Rattrapante, pointer date

Listing ID: 19587
Manufacturer / Brand: Valjoux / ETA
Caliber: 7768
Size in French Lignes: 13 1/4''', height 7.0 mm
Size range mm largest diameter: 22 - 31 mm
Shape: Round
Winding: Manual (Crown)
Hands Setting: Crown
Seconds Hand: Small seconds
Escapement: Lever (Swiss, English, Glashütte)
Date, Day, Month...: Date
Other Functions: Chronograph
Jewels: 17
Setting Lever Screw/Pin Position: Left
Balance Position: Bottom (120 - 240°)
Shock Protection: Incabloc
Beats per hour: 28,800
Balance Type: Glucydur
Power Reserve: Approx. 48 hours
Production Period: 1985 - 1998
Country: Switzerland
Identification: Marked with Valjoux logo and 7760 (not 7768, 7760 is the base movement) under the balance wheel.