FHF
Full technical sheet ↓
FHF Cal. 69-21 - Regulator with adjustable stud-holder, for flat hairspring 307-1
Technical sheet
Brand
FHF
Calibre
FHF 69-21
International reference
307-1
Compatibility
FHF 69, FHF 69-21, FHF 69-INT, FHF 691N, FHF 69N
State
Never used
Year of production
1966
Caliber diameter
15.3 mm x 18.2 mm
Caliber height
3.6 mm
Frequency
21'600 A/h
Power reserve
47h
Ruby
17
SKU
FHF_69-21_307-1
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