FHF 59-401, Winding stem

• FHF original part, not in factory packaging.
• Thread: 0.90 mm.
  
• Fits cal: 59, 59N, 59.21 (21.600 A/h.).

Data: FHF 59-21

• 17 jewels manual wind.
• Size: 3,75 x 9,25''' 9 x 21 mm.
• H: = 3,45 mm.
• N: = 21.600 A7h.
• Power reserve: 43 h.

Versions:

• 59: 18.000 A/h.
• 59N: minor modifications.
• 59-21: 21.600 A/h.