13 1/4”’ | Automatic | Swiss Lever | Chronograph | Small Seconds | Date | Moon phase |

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
• Valjoux 7768 = version of this movement with manual winding instead of automatic

 

• Listing ID: 4258
• Manufacturer / Brand: Valjoux
• Caliber: 7758 / 7750 CCL
• Size: 13 1/4''', height 7.9 mm
• Shape: Round
• Winding: Automatic
• Hand Setting: Crown
• Seconds Hand: Small seconds
• Escapement: Lever (Swiss, English, Glashütte)
• Date & Day: 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
• Contributor ©: Uhrforum.de member Badener (Andreas Kelz) and Mic69