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View picture in original size
Fig. 1

View picture in original size
Fig. 2

FHF 179-1-3

Features
manual wind
sweep second
date hand

Data
10.5 / 11.5''', Dm= 23.3 / 25.6mm
Do= 23.7 / 26.0mm
15/17 jewels
f = 18000 A/h
power reserve 45h

Balance staff *)
Flume K1...3:
U817 (K1), U849 (K2, K3)
Ronda (balance- / hairspring-collet or shock device)
Ronda 1042 (0.85 / 0.55mm)
Ronda 1061 (0.90 / 0.50mm)
Ronda 1039 (0.90 / 0.60mm)
Ronda 2675 (Incabloc)
Ronda 638 (Shock-Resist)
Ronda 3213 (Super-Shock-Resist)

Stem W842 (10.5'''), W875 (11.5''')

Mainspring / battery
Zf1142, 1.45 x 10.0 x 0.11 x 320mm

Hands
1.40 x 0.70mm

Comments about the data

Remarks
*)Many different balance staffs are recorded. But mostly the differences are small enough to apply or adapt even a "wrong" staff.
differences not known between 175-1-3, 179-1-3, probably catalogue designations for different bridge shapes (cf. other family members)

family/generations:
base calibre H= 3.5mm:
175, 179: sub second
175-1, 179-1: sweep second
175-1-3, 179-1-3: sweep second, date
175-3, 179-3: sub second, date
base calibre H= 3.8mm:
186: sub second
186-1: sweep second
186-1-3: sweep second, date
186-3: sub second, date

Example, year: signature; shock device
1) ca. 1950: Bore 428 - FHF 175; Incabloc
(FHF 175, 11.5''', sub second)
2) ca. 1945: H 69, AXZ, Benrus Watch Co Inc, Model AR 1, Swiss, 17 Jewels - 663, FHF 175; Benrus (axial)
(FHF 175, 10.5''', sub second)

Not for Sale!
The movements presented in this caliber finder are not for sale. This is only a data sheet for identification and evaluation of the movement calibre, as well as for approximate dating.

bidfun-db 21.3 © 02-08-15, mtr-Ranfft


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