Dr No[Moderator Omega - Wristscan]
37672
Looks like a ref 2506 which should have a cal 280 . . .
. . . or 283 movement. I doubt it's an American model, which would leave us at either (a) Omega's records are incomplete, or (b) the movement was swapped out in the past.
In the event it is an American model, which can be discerned by an OXG stamping on the balance bridge, then you're out of luck because Norman Morris' records weren't preserved when they sold their agency back to Omega. It would be helpful to have pics of the movement and inner caseback.
I've ordered an extract for my ref MI 2214 . . .

. . . which confirmed the movement and case matched up when it left Bienne in October 1941. There was some doubt as I expected it to have a nickel-finished 30T2 (or T1) movement. Since the movement was copper-clad, there was a fair chance it had been swapped out. But such was (fortunately) not the case. Cost of the extract was ~ $150, if memory serves correct. It took five months to arrive, though.
Best,
Art
Lovely watch.
By: TeutonicCarFan : November 8th, 2021-17:38
I love the hands and numerals on that! For mine I just want extract as interesting for history. I got this watch cheap not worth selling. Plus I love that it has been here mayhe 70 years! I just thought it was odd they couldn't get an extract in USA? Are ...
Yes, I'm in the US . . .
By: Dr No : November 8th, 2021-17:45
. . . although I asked for the extract thru my local Omega boutique, and not online - perhaps that's where the problem lays. Your ref 2506 was produced entirely in Switzerland, so it would be unusual for Omega not to have a record. Try asking your local O...