The serial no. puts it at around 1945 or 1946
The movement looks to be a 30 T2 PC AM 15p (or a 17P), both were created in 1941. Omega say these calibres were the first they made with Incabloc shock protection (
https://en.wikipedia.org/wiki/Incabloc_shock_protection_system) so you have a nice historical movement there !
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