germanio
Habitual
Sin verificar
me atrevo a opiniar que se trata de un Omega 300 o familia
[SIZE=+1]Omega 300[/SIZE]
Features
manual wind
sub second
Data
Dm=Do= 17.8 x 22.0mm
(rests on corners to fit cases for round 10.5''' movements)
H= 3.25mm
17 jewels
f = 21600 A/h
power reserve 45h
Balance staff U1249
Stem W1040
Mainspring / battery
Zf673, 1.2 x 8.0 x 0.10 x 230mm
Hands
1.10 x 0.65 / 0.15mm
Remarks
1949-
as Omega R17.8 from 1939
family:
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
(Omega R17.8)
Coño, pues no había pensado en este calibre. Cosas veredes, Sancho.