This is an extremely quite (very good over-all condition) Rolex Oysterdate Precision Reference 6694 in stainless steel with stainless steel screw-down case-back.
The serial number, 135xxxx, dates the watch to around 1961. The silvered dial is in really excellent condition, as are the hands.
The Rolex Calibre 1215 manual-wind 17 gem motion has actually just received a complete service and new gaskets. The case has actually been refinished, the crystal has been changed with the appropriate factory part and the watch is fitted with a dark brown 19mm Hirsch leather strap.
The watch is running well, and will certainly offer years of reputable service.