Measuring 31 mm across its round case, this Datejust 31 is crafted in White Rolesor, combining an Oystersteel case body with white gold elements. The domed bezel is set with diamonds, while the screw-down winding crown employs Rolex's Twinlock double waterproofness system, and a scratch-resistant sapphire crystal with a Cyclops lens over the date window completes the Oyster architecture. Water resistance reaches 100 metres / 330 feet.
The aubergine dial is itself set with diamonds, with the large VI index featuring 11 diamonds and Roman numerals marking the hours. Beneath the solid case back, the Calibre 2236 perpetual mechanical self-winding movement — Manufacture Rolex — runs to a precision of -2/+2 seconds per day after casing. Its Syloxi silicon hairspring with patented geometry, Paraflex shock absorbers, and bidirectional Perpetual rotor deliver approximately 55 hours of power reserve, alongside an instantaneous date with rapid setting and stop-seconds functionality.
The Oystersteel Jubilee bracelet features five-piece links and closes with a concealed folding Crownclasp, lending the 278344RBR-0028 its characteristic elegance on the wrist.
