The 116520 also highlighted a completely new situation design with thicker lugs and a cultured bezel. In 2016, Rolex launched the latest Edition of the Daytona, the reference 116500LN, which incorporates a ceramic bezel and a black dial with white sub-dials. Most likely most important with regard to horological history https://www.watchesworld.com/a-history-of-watch-reference-numbers/