The Rolex Datejust is without a doubt one of the most emblematic watches of the Rolex Collection. Rolex is considered a pioneer of numerous innovations. Back in 1945, the Geneva watch manufacturer launched the Oyster Perpetual Datejust. As simple as it can be, the quick changing date is a milestone in the development of watches. The Datejust was the first self-winding waterproof chronometer wristwatch to display the date in a small window at 3 o’clock on the dial. The Datejust stands out because of its delicate and gentle round lines and its audacious yet delicate design. This Rolex Datejust 279138RBR is presented with a 28mm 18k yellow gold case that match the 44 diamond-set bezel. Screw-down crown with twinlock double waterproofness system. Scratch-resistant sapphire crystal with cyclops lens over the date. White mother-of-pearl dial with diamond hour markers. The Datejust 279138RBR features 18k yellow gold President bracelet with semi-circular three-piece links, offering a more sophisticated feel and appearance. Concealed folding Crownclasp. Rolex calibre 2236 automatic movement, featuring center hour, minute and seconds hands, instantaneous date with rapid setting, and stop-seconds for precise time setting. Approximately 55 hours of power reserve. 100 meters water resistant. The Rolex Datejust 279138RBR is the essence of Rolex Datejust ladies collection: sensual, reliable, elegant and stylish designed in the sign of Rolex best tradition.