Rolex Submariner 1680

ROLEX - AN OYSTER PERPETUAL SUBMARINER BRACELET WATCH, ref 1680, circa early 1970s, the circular black dial with luminous dot hour markers and baton quarters, white outer minute markers, polished hands with luminous inserts, rotating bezel with black calibrated insert, fitted to oyster steel bracelet 78360 end link stamped 380B, oyster folding clasp stamped S P4 93150, case back internal signed and stamped 1680, the cal 1570 automatic movement numbered D237341, signed by Rolex, 26 jewels, serial number 3225894, case size 40mm.