At 31 mm, this Datejust 31 features a round Oyster case constructed in White Rolesor, blending Oystersteel with white gold. The monobloc middle case is finished with a solid case back and a screw-down winding crown operating a Twinlock double waterproofness system, giving the watch water resistance to 100 metres / 330 feet. A scratch-resistant sapphire crystal sits above the dial, complete with a Cyclops lens magnifying the date display.
The pink dial is set with diamonds in 18 kt gold settings, while the domed bezel is itself set with diamonds, lending the piece a layered brilliance. Beneath the solid case back, Rolex Calibre 2236 drives the watch — a perpetual, mechanical, self-winding movement with a Syloxi silicon hairspring, Paraflex shock absorbers, and bidirectional winding via a Perpetual rotor. The movement delivers a precision rating of -2/+2 seconds per day after casing and an approximately 55-hour power reserve, and carries COSC certification.
The Oystersteel Jubilee bracelet with its distinctive five-piece links closes via a concealed folding Crownclasp, completing reference 278344RBR-0034 with the date complication as its sole functional addition to timekeeping.
