FHF 106

Manual · 8.75‴ x 12‴ · Switzerland · 1930

Dimensions
19.95 mm x 26.85 mm
Height
3.40mm
Jewels
15
Power reserve
50h
Timegrapher
Beat rate
18,000bph
Frequency
2.5Hz

Reference: healthy amplitude ≈ 270–315° fully wound (>200° at 24 h); beat error ideally < 0.5 ms.

Movement
Movement type Manual
Winding type Stem Winding (Crown)
Setting type Stem Set (Crown Pull)
Escapement type Swiss Lever
Control type Balance Wheel
Regulator type Pinned Regulator (or Index Regulator)
Specifications
Lignes 8.75‴ x 12‴
Shape Barrel (Tonneau)
Complications Sub Second
Hand count 3
Hand sizes 1.40 x 0.65 / 0.20mm
Further measures
Mounting Diameter (Dm): 19.95 x 26.4mm
Stem height (T): 1.7mm
Mounting Height (F): 0.6mm
Origin & References
Manufacturer Fabrique d’Horlogerie de Fontainemelon
Country Switzerland
Launch year 1930
COSC certified No
Signature
ca. 1930: E, Birka, Swiss Made, 15 Jewels - FHF, 29 (FHF 29)
Notes
Remarks: differences not known between 29, 53, 57, 58, 68, 77, 94, 98, 106, 111, 127, 149, 225, 8244
Other data: balance staff: U1272 stem: W1064 mainspring / battery: Zf957, 1.35 x 11.0 x 0.11 x 400mm balance staff ronda: 1002 (8,75 x 12) stem ronda: 23 (8,75 x 12) Other data: stem ronda: 23 (8,75 x 12) Mainspring: 1.300 x 11.000 x 0.105 x 420.000 mm