Valjoux 7740

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  Signed Breitling.
• 
  Chronograph module: Dubois-Depraz: 8510.
• 
  Date between 4 and 5.

Data:

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  17 jewels, manual wind chronograph.
• 
  Size: 14''' 31,00 mm.
• 
  H: = 7,70 mm.
• 
  N: = 28800.
• 
  Power reserve:

Versions:

• 7740: 60s, 30 min, 12 h counter, date.
• 
  7741: 60s, 30 min, 12 h counter, 12/24 h, date. Ht: 7,90 mm.