This is a 15 jewel 10AK movement, with a triangle stamp near the "Bulova Watch Co. USA" stamp on the train bridge. It does not run. While in poor condition, the dial is square, with all three hands (hour and minute hands on one, the second hand on a small subdial). The square case has slightly rounded sides, what is called "tonneau" I think, and a "decorative" bezel, if that makes sense. I'm guessing that it is not a military-issue Bulova. My guess is that it's an Arnold (from vintage bulova ad 1945, page 3), but could be wrong. It is very similar to the Brewster models and other similar 15 jewel 10AK movements in the mybulova database, and hard for me to be certain. Can you help identify it?
Thank you for posting your watch. This appears to be a 1946 (based on the 6 case serial number). 1946 Bulova Cadet like this one https://mybulova.com/watches/1945-cadet-329
Thank you. It makes sense that the date of manufacture of the watch is based on the case, not the movement.
Also, I just noted that for the Arnold watch, the part of the metal case bordering the crystal (for example, in https://mybulova.com/watches/1942-arnold-10343) seems to have textured pattern on the sides only, while for the bezel of my watch, that decorative pattern extends all around the dial.