Measuring 31 mm across a round case, this Datejust 31 is built in White Rolesor, combining Oystersteel with white gold. The domed bezel is set with diamonds, while a scratch-resistant sapphire crystal with a Cyclops lens over the date window sits above the pink dial, which features Roman numeral hour markers. A solid case back and screw-down Twinlock winding crown contribute to water resistance rated to 100 metres / 330 feet.
Powering the watch is Rolex Calibre 2236, a perpetual mechanical self-winding movement with a Syloxi silicon hairspring and Paraflex shock absorbers. It offers a power reserve of approximately 55 hours, a precision rating of -2/+2 seconds per day after casing, and is COSC certified. Functions include centre hour, minute, and seconds hands, an instantaneous date with rapid setting, and stop-seconds for precise time adjustment.
The Oystersteel Oyster bracelet is composed of three-piece solid links and secured by a folding Oysterclasp fitted with an Easylink 5 mm comfort extension link. Reference 278344RBR-0021 carries the date complication as its sole complication, making it a refined yet practical choice in the Datejust collection.
