That's lovely, what appears to be a steel case ref. 2292 with 30T2Sc. I think after 1943 given mil engravings.
I'm a fan of these RAF watches, have a half dozen or so: a handful of weems, a couple of larger recases (done in 1956, with these types of redial, using 1940's movements, Longines, Omega and JLC) and a couple of plain old 6b's like this one.
Some consider them small- 33 mm, but I think they make lovely daily beaters- prized but not really valuable.
Definitely wear it!
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