The 116520 also showcased a different case style and design with thicker lugs and a refined bezel. In 2016, Rolex introduced the most up-to-date version on the Daytona, the reference 116500LN, which includes a ceramic bezel as well as a black dial with white sub-dials. When buying a timepiece from https://www.watchesworld.com/a-history-of-watch-reference-numbers/