Reference 278285RBR brings together a 31 mm round case crafted in 18 kt Everose gold, a bezel set with diamonds, and a scratch-resistant sapphire crystal fitted with a Cyclops lens over the date. The screw-down crown employs Rolex's Twinlock double waterproofness system, and the solid case back contributes to water resistance rated to 100 metres / 330 feet.
The slate dial is itself set with diamonds, with Roman numerals and a large VI set with 11 diamonds adding further depth. A date complication displays through the Cyclops lens, while the hands offer centre hour, minute, and seconds indication alongside a stop-seconds function for precise time setting.
Power comes from the Calibre 2236, a perpetual, mechanical, self-winding movement with bidirectional winding via a Perpetual rotor, a Syloxi silicon hairspring with Paraflex shock absorbers, a precision of -2/+2 seconds per day after casing, and a power reserve of approximately 55 hours. The watch carries Superlative Chronometer certification — reflecting both COSC and Rolex's own post-casing standards — and is worn on an 18 kt Everose gold President bracelet with semi-circular three-piece links and a concealed folding Crownclasp.
