Helvetia 830 (11.5'''), Winding stem, Ronda: 963

Helvetia 830 (11.5'''), Winding stem, Ronda: 963

  • 140 kr
    Unit price per 
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  • Manufacturer Ronda no: 963

  • Thread: 90

  • Fits cal: 830, 837, 838, 844, 845 (11.5''').

  • A: = 64

  • E: = 418

  • B: = 88

  • C: = 125

  • D: = 90

  • F: = 50


Data Helvetia 830


  • 17/21 jewels, manual wind, sweep second.

  • S: = 11.5''' 25.60 mm.

  • H: = 4.30 mm.

  • N: = 18.000 A/h.

  • Power reserve: 44 h.

  • Mainspring: 1.40 x 10 - 0.12 - 310


Versions:


  • 830: manual wind.

  • 837: automatic wind.

  • 838: automatic wind, redesigned.

  • 844: automatic wind, date.

  • 845: automatic wind.