Vintage watch for parts or repair. I think it might be an Accutron, I am not sure. The stem is frozen, you can't set the time, I didn't put that much force on it to try, you aren't supposed to have to. The gold content is likely worth the price for scrap and if you can do anything more with it then profit as you might.
The case is marked "Bulova 10K Gold Filled" and the band "Bretton 1/20 12K GF Pat. P." The case glass is so scratched up that it is hard to see the watch face, it says "Bulova" at top middle between the dial spindle and the numbers. The band has a break in it; it stretches but does not twist. One of the links has some kind of residue on it, might have been from a rubber band, I hope it wasn't anyone's chewing gum, anyway it flicks off with a fingernail.
Apologies if more details are not available but (1) I am not a watch expert, but mainly (2) Anyone who would possibly buy it for parts or repair is going to recognize the model.