Crafted in White Rolesor — Rolex's combination of Oystersteel and white gold — the 31 mm round case of this Datejust features a monobloc middle case, solid case back, and a screw-down winding crown with Twinlock double waterproofness. The bezel is set with diamonds, while a scratch-resistant sapphire crystal with a Cyclops lens over the date sits above the white dial dressed in Roman numeral hour markers. Water resistance extends to 100 metres / 330 feet.
Inside runs Rolex Calibre 2236, a perpetual mechanical self-winding movement with bidirectional winding via a Perpetual rotor. It delivers a precision of -2/+2 seconds per day after casing, draws on a Syloxi silicon hairspring with patented geometry, and offers approximately 55 hours of power reserve. Functions include centre hour, minute, and seconds hands, an instantaneous date with rapid setting, and stop-seconds for precise time setting. The movement is COSC certified.
The watch rides on an Oystersteel Jubilee bracelet composed of five-piece links and secured by a concealed folding Crownclasp. Reference 278384RBR-0014 carries the date complication and represents the Datejust 31 in one of its most refined configurations.
