A Watchmaking Classic The Lady-Datejust carries the legacy of the original Datejust in a refined and elegant form. Introduced in 1957, it was the first womens chronometer wristwatch with a date window, combining classic aesthetics with technical performance. Its graceful proportions and enduring design make it a symbol of feminine sophistication. Compact Precision This reference 279135RBR features a 28mm case in 18ct Everose gold with a gem-set bezel and a mother-of-pearl dial. Powered by the calibre 2236 automatic movement, it offers approximately 55 hours of power reserve. The President bracelet is fitted with a concealed Crownclasp for seamless elegance. This 2016 model is part of the Rolex Certified Pre-Owned collection and includes official documentation and a two-year international guarantee.