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|Dugena 556 (Osco 52)|
8.75 x 10''', Dm=Do= 20.05 x 22.5mm
rests on corners to fit cases for round 10.5''' movements, Dm=23.3mm
f = 18000 A/h
Balance staff U1636
Mainspring / battery
Zf1389, 1.7 x 9.0 x 0.10 x 290mm
1.40/1.45 x 0.90 x 0.18mm
Comments about the data
designation 556 applied for two different calibres
ratchet on dial side, crown mechanism with rocker bar
553: sub second
556: sweep second
Example, year: signature; shock device
ca. 1945: 1, Osco, Kal.52, Parat - 11; Monorex
(Osco 52, 17 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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