Possible Bulova Sea Clipper "AW" from 1961
Stainless steel case dated M1, measures approx 34mm wide, two-piece pressure-fit case (movement/crystal/crown/caseback separate from bezel through the back). White dial with luminous hands and markers (maybe a prior re-lume, not sure if the dial was ever re-finished). 17 Jewel 11AFAC Swiss movement, self-winding, dated M1. Replacement strap.
1961 Price list has "AW" as the only $49.50 variant listed, which is the price listed on all supporting ads.