FHF 63-445, Setting lever spring

• FHF original part in factory sealed packaging.

• Fits cal: 63, 63-2, 63-3

Technical data: FHF: 63

• 15/17 jewels, manual wind, sub second.
• Size: 8.75''' 19.4 mm.
• H: = 3.6 mm.
• N: = 18.000 A/h.
• Power reserve: 44 h.