Be sure to Take note that starting in 2005, Rolex commenced engraving the serial amount around the interior bezel (also called the rehaut) under the crystal at the six o’clock placement. Its large and eye-catching spherical deal with comes with 3 subdials for timing seconds, minutes, and hours—additional time-retaining abilities https://www.watchesworld.com/a-history-of-watch-reference-numbers/