This is a great Divers watch from the early 1970's.  Waterproof to 60m so it was designed and used for diving.  It also has the "T" mark to show Tritium was used as lume on the hands and batons.  Many deep diving watches in this period used this to ensure good visability in dark waters.

Each baton has a green hue as well as the minute and hour hands.  This is the faded Tritium.  

The bezel rotates in both directions and is in good condition for its age and usage.  The same for the black dial which is clear and undamaged.