The 116520 also featured a whole new circumstance design and style with thicker lugs and a refined bezel. In 2016, Rolex introduced the newest version in the Daytona, the reference 116500LN, which contains a ceramic bezel and a black dial with white sub-dials. 100M Watertight: By using a h2o resistance https://www.watchesworld.com/a-history-of-watch-reference-numbers/