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10.5''', Dm= 23.25mm, Do= 23.7mm
f = 18000 A/h
Balance staff U611
Mainspring / battery
Zf1131, 1.45 x 9.0 x 0.11 x 260mm
1.30 x 0.80mm
Comments about the data
ratchet on dial side, crown mechanism with rocker bar
option: ratchet on back side, crown wheel just for show (Fig.3, 4)
Example, year: signature; shock device
1-2) ca. 1935: Swiss Made, 15 Rubis
3-4) ca. 1945: Swiss Made, Adj., 15 Jewels
© B. Johnson
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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