Bulova 1973 Accutron Date & Day
I am pretty sure this is a 218 day/date. Have to pin down the version.
I picked this up at a recent auction. Mainly because of the classic 70s look and the watch band.
Just take a look at those Accutron links. I love it.
It does work, well it works but does not keep time.
Another one for a service I think.