CERTINA cal: 13.50 - 13.51

Technical data CERTINA 13.50

  • 17 jewels, manual wind.
  • Size: 6'''  13.5 mm.
  • H: = 3.2 mm.
  • N: = 21.600 A/h.
  • Power reserve: 40 h.
  • Mainspring: 1.20 x 5.0 - 0.06 mm.

Versions:

  • 13-50:      base caliber.
  • 13-51:      back winding.