FHF 672

Update

Basic Information

NameFHF 672
ManufacturerFabrique d’Horlogerie de Fontainemelon
Launch Year1975
Caliber FamilyDescription
67: 10.5"
67-2: 10.5" , date mounted on plate
67-2: same with plate over date jumper
67-4: 10.5" , date integrated in plate
671: 11.5"
671-2: 11.5" , date mounted on plate
671-2: same with plate over date jumper
671-4: 11.5" , date integrated in plate
677-8: 11.5" , day, date

Related calibers
FHF 67, FHF 67-2, FHF 67-2N, FHF 67-4, FHF 671, FHF 671-2, FHF 671-2N, FHF 671-4, FHF 672, FHF 673, FHF 674, FHF 675, FHF 675-4, FHF 676, FHF 676-4, FHF 677-8
Is COSC certifiedNo

Technical Details

Lignes Dimensions10.5 ‴
Dimensions23.7 mm
Height4 mm
Further MeasuresMounting Diameter (Dm): 23.3mm
Stem height (T): 2.1mm
Mounting Height (F): 1.4mm
Power Reserve51 hours
Frequency18,000 vph
Jewels21

Complications and Specifications

ShapeRound
Complications
  • Sweep Second
  • Moon Phase
Regulator TypePinned Regulator (or Index Regulator)
Movement TypeManual
Escapement TypeSwiss Lever
Control TypeBalance Wheel
Winding TypeStem Winding (Crown)
Setting TypeStem Set (Crown Pull)

Additional Information

Hand Sizes1.30 x 0.90 x 0.21mm
Hand Count3
Country Of ManufactureSwitzerland
NotesRemarks: different bridge shapes (cf. photos)
differences not known between 67, 672, 674, 676
Other data: balance staff: U2290 / U3147 balance with/without screws stem: W2417 mainspring / battery: Zf1034, 1.40 x 9.5 x 0.10 x 315mm balance staff ronda: 4101 (10,5-11,5) stem ronda: 915 (10,5) Mainspring: 1.400 x 9.000 x 0.100 x 320.000 mm
Ranfft mentioned about this caliber: There are variants with this quantity of jewels 17, 21
Signature1) ca. 1975: KL, Swiss, 21 Jewels; Ruby-Shock (FHF 67-4) 2) ca. 1950: FHF 67 - 67-2 (FHF 671-2, 11.5" )

Metadata

Created AtSep 15, 2023
Updated AtApr 23, 2025, 11:32:42 PM