My friend, who knows Bulova much better than I do, says it's a variant of the 'Sea King'.
If it had the whale silhouette, it would be a Sea King. 馃槈
I like that bracelet, is that a jb champion?
@SpeedyPhill was too quick but yes a JB champion like the one used by the NASA astronauts, the on with corned lugs. I should put my 2018 wristlycalendar on it too!