Dr No[Moderator Omega - Wristscan]
37613
Ω ref 2272, 37.5 mm case, late '40s or early '50s production . . .
. . . cal 265 movement - nice! These jumbos are relatively uncommon and desirable to Omega collectors.
My early '50s example . . .
. . . waves hello! A drunken watchmaker used channel locks to compress the 'southern' lugs together, presumably to fit a 19 mm springbar because he'd run out of 20 mm stock. Otherwise, it's original and unmolested.
Cordially,
Art