The Pioneering Original Introduced in 1945, the Rolex Datejust was the first wristwatch to feature a date display that changed automatically at midnight. Its elegant proportions and technical innovation have made it a defining model in the Rolex collection. Refined Aesthetics This reference 116200 features a 36mm Oystersteel case with a domed bezel and white dial. Powered by the calibre 3135 automatic movement, it offers a 48-hour power reserve and is paired with an Oyster bracelet secured by an Easylink Oysterclasp. A clean and classic expression of the Datejust legacy.