The Datejust 31 in reference 278285RBR-0006 presents a round 18kt Everose gold case measuring 31mm, topped by a bezel set with diamonds and protected by scratch-resistant sapphire crystal with a Cyclops lens magnifying the date. A screw-down crown with Twinlock double waterproofness system and a solid case back round out the construction, with water resistance to 100 metres / 330 feet.
The chocolate dial is itself set with diamonds held in 18kt gold settings, while the President bracelet — composed of semi-circular three-piece links in 18kt Everose gold — fastens via a concealed folding Crownclasp. Every element of the watch reflects the warm rose tones of Everose gold throughout.
Inside runs the Rolex Calibre 2236, a perpetual mechanical self-winding movement featuring a Syloxi silicon hairspring with patented geometry and Paraflex shock absorbers. Bidirectional winding via the Perpetual rotor delivers approximately 55 hours of power reserve, and the movement carries Superlative Chronometer certification — combining COSC standards with Rolex's own post-casing verification for precision of -2/+2 seconds per day. This example is unworn and offered as a complete set with Rolex box and Rolex papers.
