Rolex Explorer II 16550 Polar White From 1986 (Serial 9.720XXX), very good case that has been polished in the past and shows verz light wear from use, excellent original polar white tritium dial with matching hands, the original beyel is in excellent conditions, excellent original 78360 oyster bracelet with 501B endlinks that shows light stretch from use, claspcode is I4, the serial and ref numbers between the lugs are crisp and well defined, the movement has been checked by our watchmaker and is running normally, excellent overall conditions