This is really interesting. It seems like a Phantom case... but has one of those faux military dials.
Took a G-S PMX 383 crystal with little fiddling.
I'm inclined at Unknown, or a redialed Phantom?
We have seen this case once before and classified this as unknown like this one. https://mybulova.com/watches/1939-unknown-5045
That being said I do not think the dial is original nor the hands. Looks to me like a refinished dial with replaced hands. Unknown or non-conforming would work for me.
Agreed. The dial and hands are not origainl to this watch as and such we would be unable to correctly provide a model ID. Case serial indicates 1939 but the lumed dial and hands suggest mid-late 1920s.
1939 Bulova Non-conforming for me, but a neat looking custom Bulova all the same.