Omegafanman
·It's definitely not the Omega 2292 case, the lugs are too heavy, to my eye. I think it might be this case, different dial obviously.
https://www.historicflyingclothing....ry-pilot-s-wristwatch/prod_17124#.YTXZrC1Q3aY
Your stopwatch is a SmithS VC.2530 1/5th sec, circa 1942/3 issued to artillery, I think. Nice stop watch, also in a Dennison Cuprel case.
Thanks for the info. I agree aside from the crown and font the case looks a good match (pic below). I thought the Tissot with crown also looked a good match. Hopefully someone will chime in on the tank watch.
.