The “Datejust” title had turn into a long-lasting fixture on its dial, and other functions like the fingers, bezel, hour markers, and crystal (with cyclops magnification lens) took types that are still greatly current on the modern Datejust watches that Rolex manufactures today. Gentlemen's watches: The Pagani Design and style https://www.watchesworld.com/a-history-of-watch-reference-numbers/