This one's a puzzler. I'll explain below.
The case is 10K rolled yellow gold filled, marked 1963 (M3). Its got a 21 jewel 8AC movement, marked 1962 (M2).
I can't find an ad to support an ID.
Having said that, this watch matches two in the database. One matches my watch exactly and is IDed as a "Craftsman D":
The second is exactly like both my watch and the one above but it has a black face. Its marked "Unknown":
I'd be happy to go with "Craftsman D" except that in reading through the comments it looks like it was a bit of a sketchy ID. There's no ad and it looks like it was based upon crystal specs. I'll leave it to you guys to decide.