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|Dugena 704 (Bifora 934(SC))|
9.75''', Dm= 21.25mm, Do= 21.65mm
f = 18000 A/h
power reserve 34h
Balance staff U1849
Stem W2027 / W2237 / W2236
13mm / 16mm / water protected
Mainspring / battery
Zf1031, 1.40 x 8.0 x 0.10 x 230mm
1.23 x 0.70 x 0.22mm
Comments about the data
ratchet on dial side, crown mechanism with rocker bar
704: sweep second
707: sub second
Example, year: signature; shock device
ca. 1955: B 934, Dugena 704; Bifora-Bishock
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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