Based on the posted advertisements, this looks to be a 1953 Thayer. Notice the change in the case back from smooth in the 1952, to the imprinted "Self Winding" "Anti Magnetic" etc.
Crown is smooth and not signed.
This watch runs very intermitently.
Hello schmittwerks, welcome to myBulova. I agree that this is Thayer, it's a nice example.
1953 Bulova Thayer
Agree with Thayer