Rolex Oyster Perpetual Date Submariner gentlemen chronometer. Ca. 40 mm, high-grade steel Oystersteel, black, rotating bezel ceramic, automatic, lever movement, calibre No. : 3135, 31 stones. Center seconds, date display, Ref. Number: 16610 X, about 1991. Original Rolex bracelet with folding clasp, box, box, guarantee and operation manual. Very good condition, only rarely worn. Fully operative.