Possible 1965 Bulova American Eagle 'D'
Decorative bezel and dial. Case back dated M5 and marked stainless steel, .0015 gold electroplate bezel. Inside caseback stamped 2503. Movement is a manual winding 11AL dated M5.
My reasoning for variant 'D' is based on the listed ad price of $35.95 and the availability of two variants at that price per the '64 pricelist. One of these is already identified as the 'F', leaving the other variant at this price the 'D'

Supporting ad from 1966
Cool watch.
AE "D", two ticks. AE three.
AE
AE
Yeah, that's a very cool watch Ken, I have one as well. It could well be a "D" but I'm going to stay with no variant too.
American Eagle
Easy three ticks. Good logic on guessing the "D". Hopefully more will be reveled and we can nail down varinat.
LineBook #158 confirms this one to be the 'D' variant.
