The “Datejust” title had become a permanent fixture on its dial, as well as other attributes such as the hands, bezel, hour markers, and crystal (with cyclops magnification lens) took varieties that are still a great deal present on the fashionable Datejust watches that Rolex manufactures right now. ST 105.003-65 https://www.watchesworld.com/a-history-of-watch-reference-numbers/