Xeer
路OK, I will tread lightly with non-Omega, but since @Xeer broke the ice... But seriously, if this is inappropriate, let me know.
1940s Angelus chronograph with in-house cal 215 movement in a 38mm SS case. Angelus made the identical chronograph for the Hungarian air force ("LE" on case-back). Sadly, this is a civilian version, but in nice unpolished and original condition.
I saw a whole bunch of non-Omegas being shared prior. Unless your interpretation of Omega includes Blancpain, JLC and Longines.
Cheers, nice 215 Angelus btw!