FHF 37-721N, Balance, complete

• FHF original balance, complete in factory sealed packaging.

• Fits cal: 37, 374, 378 with Incabloc, Novoshok, KIF
  

Technical data FHF cal: 37

• 17 jewels, manual wind sweep second.
• S: = 8.75''' 19.7 mm.
• H: = 3.50 mm.
• N: = 21.600 A/h.
• Power reserve: 47 h.

Versions:

• 37: big barrel.
• 371: small barrel.
• 372: small barrel, date.
• 373: small barrel, day, date.
• 374: big barrel, date.
• 378: big barrel, day, date.