Rolex Datejust 16018, Quickset, Sapphire Crystal

Rolex Datejust 16018 dating to late 1970s. Solid 18K gold case and bracelet, sapphire crystal and a quickset date feature. Fast beating movement cal. 3035. The case back is stamped inside 18000 which usually would come with a Date Date model. Rolex was known to replace case backs during service when needed and often used what fit and was on hand. The size of case backs for 16018 and 18038 is the same. Interesting engraving on the case back showing a riffle with a scope.