Rolex, Submariner 300m, Ref. 16800, n° R59xxxx, original warranty from November 7, 1988. A beautiful steel diver's watch, rotating graduated bezel, black dial, luminous hands and hour markers, central second hand, date at 3 o'clock. Screw-down caseback and crown, self-winding mechanical movement. Original Oyster bracelet with folding clasp. Delivered with its original case, document and tag, our watch is in excellent overall quality, with Rolex service for the hands. Reference 16800, produced from 1979 to 1988, differs from the 1680 in the use of a sapphire crystal, increasing diving capability to 300m. Circled hour-markers and an updated movement (quick date) were also part of the evolution. Our example, dated November 1988, is one of the last produced under this reference. Diameter 40 mm A fine stainless steel diver's wristwatch, black dial, luminous hands & indexes, permanent centering seconds and date at 3. Screw-back and crown, automatic winding movement, original Oyster band with deployant buckle. Delivered with its original box, document and tag, our watch is in excellent overall quality, with Rolex service regarding the hands. The reference 16800, produced from 1979 to 1988, stands out from the 1680 by the use of a sapphire crystal increasing the diving capacity to 300m. The circled indexes as well as an updated movement (quick date) contribute to the evolution. Our watch, dated November 1988, is one of the last produced under this reference.