Bought this one cheap thinking it might be an Ambassador. Nope, unengraved back and no bevels at crystal corners. Case is 2 piece and marked "GF" on one end in between the lugs.
It appears to be an unengraved white gold filled version of the Executive. Measurements and case style are a match, as is movement and face.
There is only one 1925 Executive (also 2 piece case) in the Db, and it is engraved. Case s/n of that one is 5228038 (difference of 236) , with a movement s/n of 67222.(difference of 246). If this isn't an unengraved Executive, the proximity of the s/n's is a remarkable coincidence.
We have seen multiple examples of watches in this time period (1925-1935) advertised as engraved , with an unengraved version also available, but not in ads. I have to say this is the oldest Mens Bulova wristwatch I have ever held in my hand and likely one of the oldest yet submitted with the standardized 7 digit s/n.
No apparent plating wear or "egging" of lug holes. Clean glass crystal. Lots of service marks - running and keeping time. Noting mismatched hands. Replacement stitched leather band as shown in ads