At the heart of this 31mm timepiece is an aubergine dial adorned with diamonds and Roman numerals, with the large VI marker itself set with 11 diamonds. The domed bezel is set with diamonds as well, while the round case is crafted in White Rolesor — Rolex's combination of Oystersteel and white gold — featuring a monobloc middle case, solid case back, and screw-down winding crown with Twinlock double waterproofness. A scratch-resistant sapphire crystal with Cyclops lens over the date completes the case, rated waterproof to 100 metres / 330 feet.
The watch rides on an Oystersteel Jubilee bracelet with five-piece links and a concealed folding Crownclasp. Inside, Calibre 2236 — a perpetual, mechanical, self-winding movement from Manufacture Rolex — delivers a precision rating of -2/+2 seconds per day after casing, with approximately 55 hours of power reserve. The oscillator features a Syloxi hairspring in silicon with patented geometry and high-performance Paraflex shock absorbers, while bidirectional self-winding is achieved via a Perpetual rotor. The movement is COSC certified and provides instantaneous date with rapid setting alongside stop-seconds for precise time setting.
Reference 278344RBR-0027 is the Datejust 31, a model that balances refined proportions with diamond embellishment throughout — from the bezel to the dial — making it a distinctly dressed expression of this enduring Rolex line.
