ROLEX EXPLORER REF. 1016 NO. 31423XX STAINLESS STEEL WRISTWATCH, 1972 ROLEX EXPLORER REF. 1016 NO. 31423XX YEAR 1972 stainless steel case, screw-down case back, crown marked, smooth bezel, black dial, white graphics, tritium indexes and Arabic numerals, self-winding movement cal 1570, non-original steel oyster bracelet, 580 finials, original clasp production code 6.73, inner length cm 20, box clasp marked Rolex, plastic crystal. Diam. 35 mm