This is a good looking and fun Skin Diver Watch.  It's from the 1970's and is hardly worn and in great condition.  

The Black dial is set with green batons and the date window at 3 O'clock, but it's unusual twist is the outer yellow internally rotating bezel.  This is controlled by the second crown and rotates in both directions.  The yellow bezel contains the 12 signs of the Zodiac.  

Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius, Capricorn, Aquarius and Pisces are all depitced.

You can set them the January Zodiac sign of Capricorn is located at 1pm (for the 1st month of the year).  Then you have a reminder of what month has what star sign on your wrist.  

The watch runs great and is in great condition. It's a real conversation piece and also very rare.  The yellow bezel makes it stand out nicely.
It comes with a new black leather strap but would also look good on a number of coloured NATO straps.