Housed in a 31 mm round case crafted from Everose Rolesor — Rolex's combination of Oystersteel and Everose gold — reference 278241-0015 follows the classic Oyster architecture: a monobloc middle case, solid screw-down case back, and a screw-down winding crown secured by the Twinlock double waterproofness system. Scratch-resistant sapphire crystal with a Cyclops lens magnifies the date, and the case is waterproof to 100 metres / 330 feet.
The silver dial is set with diamonds held in 18 kt gold settings, giving the face a quietly luminous character. The Oyster bracelet, constructed from three-piece solid links in matching Everose Rolesor, fastens with a folding Oysterclasp featuring an Easylink 5 mm comfort extension link for a precise, adjustable fit.
Powering the watch is the perpetual, mechanical, self-winding Calibre 2236, a Manufacture Rolex movement rated to a precision of -2/+2 seconds per day after casing and COSC certified. It beats with a Syloxi silicon hairspring of patented geometry, absorbs shocks via high-performance Paraflex absorbers, winds bidirectionally through a Perpetual rotor, and carries an approximately 55-hour power reserve. Functions include centre hour, minute, and seconds hands, instantaneous date with rapid setting, and stop-seconds for precise time setting.
