The Rolex Certified Pre-Owned Datejust is presented in a 36mm yellow Rolesor case with a slate dial with Roman numerals and an hour marker at 9. It features a fluted bezel. Worn on a Jubilee bracelet, it is driven by the automatic Calibre 3235. The Datejust of 1945 was the first self-winding chronometer wristwatch to show the date in a window, and it remains the archetype of the classic Rolex. It is waterproof to 100 meters.