Tudor Prince Oysterdate Ref 7996/1 Authentication

[jspollmnn]

I believe I made a 'rookie' mistake yesterday as I didn't properly investigated a Tudor Prince Oystedate before I pulled the trigger and as a result I am afraid I might end up with a 'franken'.

The watch is described as a 1960's watch and the description on the back suggest so as well. However the serial number between the lugs is 7712** which according to some online serial number database for Tudor was only produced in the 1970's.

See below some pictures and I am curious about the opinion of the experts as I might need to do a refund on this one. Thank you!