At 31 mm, this Datejust 31 is built around a round White Rolesor case — a combination of Oystersteel and white gold — featuring a monobloc middle case, solid case back, and a screw-down winding crown with Twinlock double waterproofness. The domed bezel is set with diamonds, while scratch-resistant sapphire crystal with a Cyclops lens over the date window completes the case. Water resistance reaches 100 metres / 330 feet.
The mint green dial features a Chromalight display with long-lasting blue luminescence for high legibility. The date complication is rendered with instantaneous rapid setting, and the hands include a stop-seconds function for precise time adjustment. The Oystersteel Jubilee bracelet with five-piece links fastens via a concealed folding Crownclasp.
Powering the watch is the perpetual, mechanical, self-winding Calibre 2236 by Manufacture Rolex, rated to -2/+2 seconds per day after casing and COSC certified. The oscillator uses a Syloxi silicon hairspring with patented geometry alongside Paraflex shock absorbers, and the bidirectional Perpetual rotor delivers a power reserve of approximately 55 hours.
