That's amazing... what year is that from? Never seen anything like it before...
It's a late 1960's Bulova Marine Star, powered by a Valjoux caliber 7731. Case is nearly identical enough to the Zenith Cairelli, and an Excelsior Park reference from the same era. I am missing the EP, but the complete trio can be seen at the link below, compliments of member @LouS.
Not necessarily the appropriate activity for this watch but I enjoy having it on my wrist for the foreseeable future. (kind of allows my dad to "watch" his grandson play)