Ambassador Automatic, with a silver dial, 38mm polished silver case, on an aftermarket black leather strap.
I have not been able to find a case match to this one but the dial generally is good for an ID. The question is if the movement, case and dial are factory. I believe this to be a factory 1972 Bulova Ambassador but the date code on the movement appears to be N4 indicating a possible movement swap. Can you confirm the date code on the rotor?
In reply to I have not been able to find… by JimDon5822
In reply to Hi, yes I can confirm the… by Paul Meek
In reply to It is possible the movement… by JimDon5822
The case serial number is stamped on the outer caseback. Yours appears to be 8 digits beginning with a 3.
Inside the caseback is the case reference number (not a serial number) and is used for replacement parts identification.
My book does not contain a case #7315 but does show a #7313, #7314 and then jumps (oddly) to #7317.
All of these cases use the 11AOACB movement.
IMO, with the movement dating to 1974 plus the lack of any case reference in the U.S. book the watch is a 1974 'AMBASSADOR', an import or international model.
In reply to The case serial number is… by FifthAvenueRes…
In reply to Thanks for the clarification… by Paul Meek