bu1350

The original Datejust was a 36mm case size. While a date display has become completely standard on most contemporary timepieces, the Rolex Datejust was the world's very first self-winding wristwatch to feature a date window .1972: Rolex embarks on a 5-year journey to conceptualize, design, develop, and test its own in-house quartz movement. 1975: The last Rolex ‘Red Submariner’ ref. 1680 .