The “Datejust” name had become a everlasting fixture on its dial, and various options like the hands, bezel, hour markers, and crystal (with cyclops magnification lens) took types that are still very much present on the fashionable Datejust watches that Rolex manufactures now. Although the crystals over the 160xx generation https://www.watchesworld.com/a-history-of-watch-reference-numbers/