Valjoux 7758 / 7750 CCL

132 views

Remarks:

CCL = Con Cours de Lune
Automatic with unidirectional winding
Chronograph cam-actuated: 60 s (center second), 30 min counter at 12 H
Small second at 9 H with hacking
Moon phase at 6 H 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 7750
Movement family (all are chronographs):
- ETA 7750: Automatic, date, day
- ETA 7751: Automatic, pointer date, day, month, moon phase, 24 h indicator
- ETA 7753: Automatic, date at 4:30H, 30 min counter at 3H
- ETA 7754: Automatic, date at 3H, central 24 h indicator, 30 min counter at 12H
- ETA 7758 / 7750 CCL: like 7750, with moon phase
- ETA 7760: Hand winding, date, day, 30 min counter at 12H
- ETA 7765: Hand winding, date
- ETA 7768: Like 7758, but hand winding
- ETA 7770: Automatic, Rattrapante, pointer date at 3 H

Listing ID: 4258
Manufacturer / Brand: Valjoux
Caliber: 7758 / 7750 CCL
Size in French Lignes: 13 1/4''', height 7.9 mm
Size range mm largest diameter: 22 - 31 mm
Shape: Round
Winding: Automatic
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. 46 hours
Production Period: 1985 - 2003
Identification: Marked with 7758 next to the balance, Valjoux logo under the balance.
External Link: https://uhrforum.de/threads/identifizierte-uhrwerke-die-weder-bei-ranfft-lorenz-noch-im-watch-wiki-zu-finden-sind.86322/page-13#post-2455395
Country: Switzerland