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8.75''', Dm= 19.4mm, Do= 19.8mm
f = 18000 A/h
Balance staff U2057
Mainspring / battery
Zf837, 1.30 x 7.5 x 0.085 x 230mm
1.23 x 0.65 / 0.18mm
Comments about the data
84: sub second
84(SC): sweep second
84/1: sub second
84/1(SC): sweep second
85: sub second
85(SC): sweep second
Example, year: signature; shock device
ca. 1960: - WC, Bifora 85; Bifora-Bishock
© R. van Rijn
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.
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