Original Rolex Submariner 1680 with red writing. The serial number of 368XXXX indicates that this automatic Sub is from 1972, in which year the Subs were delivered like this: with "feet first" and with open 6-s on the dial. This Sub has the original tritium dial and tritium hands, with a matching patina. The band is a 1972 folded Oyster band, type 9315, case and band are in very good condition. The insert has been changed for a lumi-insert during Rolex service.