|Index||Timepiece Archive, Categories||Archive: Watch Movements||Timepiece Market|
Dm=Do= 17.8 x 22.0mm
(rests on corners to fit cases for round 10.5''' movements)
f = 21600 A/h
power reserve 45h
Balance staff U1249
Mainspring / battery
Zf673, 1.2 x 8.0 x 0.10 x 230mm
1.10 x 0.65 / 0.15mm
Comments about the data
as Omega R17.8 from 1939
300 (R17.8 until 1949): sub second
301 (R17.8AM until 1949): sub second, antimagnetic
302: sub second, Incabloc, antimagnetic
310 (R17.8SC until 1949): sweep second
311 (R17.8SC AM until 1949): sweep second, antimagnetic
Example, year: signature; shock device
1939: 9163912, M, Omega Swiss, 15 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|
...the alternative - free of charge!