Very possibly a Bulova frankenwatch (see movement).
Case Model: Trident, or Alden, or Chancellor. I think Chancellor. 1938 according to case serial number.
Movement 1937 according to the arrow symbol. Movement should apparently be 10AN, but the bridge (at least) is 10AE. It's 17J.
At the edge of the mainplate under the balance wheel it has the number 41 engraved in a trapezium.
Can't find a movement serial, but I've so far only removed the balance.
Also engraved in the case back:
21461H or possibly 214GIH
F32285 (quite scratchy)
Gold plated, worn off at the corners. In the photo's (sellers photos) it looks a bit like rose gold, but definitely yellow in real life.
Balance pivot broken, in the process of replacing balance staff.
I don't like the tinted crystal much, might replace with clear.