The “Datejust” name had become a permanent fixture on its dial, and other functions including the palms, bezel, hour markers, and crystal (with cyclops magnification lens) took kinds that remain a great deal present on the fashionable Datejust watches that Rolex manufactures currently. 012. They’ve taken numerous varieties over time, https://www.watchesworld.com/a-history-of-watch-reference-numbers/