Late '40s 30T2 in Dennison case. This is a pleasure to wear...It's actually a little smaller and slimmer than the usual 30T2, and smaller than this image would suggest. It's about 33 mm.
I threw this one on before light work in the yard, a 1969 ref. S8323A with cal ETA2750.
I bought it for the interesting dial which, I think, is part patina, part intentional, but I could be wrong! The seller called it a 'stone dapple' dial. Perhaps ugly to some, I do like the look:
Revue-Thommen was founded in Switzerland in 1853, when they first made clocks and pocket watches. The company is probably best known for its aviation instruments, and also for the 'Cricket' alarm clock.