I'd also wonder if the movement and dial / case are from the same period.
I seem to recall the steel colored finish on the 30T2 was only in use for part of the 1940s, and that Omega switched to the copper-tone finish during that decade. Since the dial, case and handset are clearly late 40s or early 50s in style, it might mean that the movement did not initially belong with that dial /case and handset. (the hands and dial are actually early 50s, the case looks either late 40s or early 50s).