The Rolex "Red-Writing Submariner" has genuine rarity and also makes a great everyday watch. The serial number and case-back markings "1st quarter 1970" make this one of the first of the Mark IVs, with broad open-loop sixes and "feet first" printed on the depth rating. Genuine warm patina on the dial and date display, beautifully-matching yellowed hands and luminous markers, and the fat font bezel all add value to this iconic sporty Rolex.