The “Datejust” name had become a permanent fixture on its dial, and other capabilities including the hands, bezel, hour markers, and crystal (with cyclops magnification lens) took types that remain greatly existing on the fashionable Datejust watches that Rolex manufactures currently. Although the 41mm Datejust II happy the public's request https://www.watchesworld.com/a-history-of-watch-reference-numbers/