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View picture in original size
Fig. 1

View picture in original size
Fig. 2

Bifora 120BSC

manual wind
sweep second

12.75''', Dm= 28.8mm, Do= 29.4mm
H= 5.3mm
F= 1.1mm
T= 2.05mm
17/18 jewels
f = 18000 A/h
power-reserve 45h

Balance staff U2189

Stem W2323 / W3057
for wrist/pocket watch

Mainspring / battery
Zf1404, 1.70 x 11.5 x 0.13 x 360mm

1.40 x 0.85 x 0.21mm

Comments about the data

1955-1967, >100000 (all versions)
some thousands of the Unima versions as chronometer

120: sub second, Reed's regulator
120SC: sweep second, Reed's regulator
120B: sub second, simple regulator
120BSC: sweep second, simple regulator

Example, year: signature; shock device
ca. 1965: B, 120, BI; Incabloc
(18 jewels)

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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