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stem wind and set
18''', Dm= 39.7mm, Do= 40.55mm
f = 18000 A/h
Balance staff U197
Mainspring / battery
Zf3031, 1.50 x 16.0 x 0.20 x 460mm
1.80 x 1.00 / 0.28mm
Comments about the data
open face calibre
ratchet on dial side, crown mechanism with rocker bar
779: ratchet on dial side
793: ratchet back side
Example, year: signature; shock device
1936: 4, Swiss Made, 10 Rubis - ASSA, Ebauches-SA logo from 1936 (TR in shield)
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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