1966 Bulova 30 jewel self winding men's watch.  It has a 10kt gold filled case.  It is shock resistant, water proof and anti-magnetic.  Numbers on the back of the case are J151016 and M6. It has a stretchy Speidel watch band on it.

It has scratches on the crystal and case.  It is running and keeping time. I don't know too much about it, so it may need to be serviced. This is an estate find.