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

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

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Pozostało tylko 3!
  • Manufacturer Ronda no: 963
  • Thread: 0.90 mm
  • 1 pcs.
  • 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.