Need a part for this caliber? Supporters unlock the parts catalog, factory equivalents, and the donor finder that shows which other movements can supply the part you need. Become a Supporter

Updates to data and images are welcome from our readers.

FHF 702

Update

Basic Information

Name	FHF 702
Manufacturer	Fabrique d’Horlogerie de Fontainemelon
Launch Year	1955
Is COSC certified	No

Timegrapher

Beat rate

18,000 bph

Frequency

2.5 Hz

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

Technical Details

Lignes Dimensions	10.5 ‴
Dimensions	23.7 mm
Height	3.8 mm
Further Measures	Mounting Diameter (Dm): 23.3mm Stem height (T): 1.9mm Mounting Height (F): 1.0mm
Power Reserve	43 hours
Frequency	18,000 vph
Jewels	17

Complications and Specifications

Shape	Round
Complications	Sub Second Chronograph Stopwatch
Shock Protection	Incabloc
Regulator Type	Pinned Regulator (or Index Regulator)
Movement Type	Manual
Escapement Type	Swiss Lever
Control Type	Balance Wheel
Winding Type	Stem Winding (Crown)
Setting Type	Stem Set (Crown Pull)

Additional Information

Hand Sizes	1.30 x 0.70 / 0.22mm
Hand Count	3
Country Of Manufacture	Switzerland
Notes	Remarks: baseplate in two sizes, partially with same number differences not known between 70, 701-709, 7010-7018 The signature WO in a D indicates Dugena as applicant of the example movement. The signature FHF 70 with attached 2 may indicate the variant FHF 702 of the FHF 70. Other data: balance staff: U1680 / U3149 balance with/without screws stem: W2065 mainspring / battery: Zf1391/2, 1.70 x 9.5 x 0.10 x 315mm balance staff ronda: 2969 (10,5-11,5) stem ronda: 484 (10,5) Other data: stem ronda: 484 (10,5) Other data: balance staff ronda: 2969 (10,5-11,5) Mainspring: 1.700 x 9.000 x 0.100 x 320.000 mm
Signature	ca. 1955: FHF 70 2 - DWO, FHF 70; Incabloc (Dugena 777)

Compatible Parts

No parts linked yet for this caliber.

Metadata

Created At	Sep 15, 2023
Updated At	Apr 23, 2025, 11:32:42 PM