Presented in a 36 mm Oyster case crafted from 18 kt yellow gold, this Day-Date 36 (ref. 128348RBR-0027) features a bezel set with diamonds alongside a champagne dial. The monobloc middle case is fitted with a screw-down case back and a screw-down Twinlock winding crown, providing waterproofness to 100 metres / 330 feet. Scratch-resistant sapphire crystal with a Cyclops lens over the date completes the case.
The diamond-set President bracelet in 18 kt yellow gold is secured by a concealed folding Crownclasp. Powering the watch is the perpetual, mechanical, self-winding Calibre 3255, a Manufacture Rolex movement with bidirectional self-winding via a Perpetual rotor, a paramagnetic blue Parachrom hairspring, and high-performance Paraflex shock absorbers.
The Calibre 3255 delivers a power reserve of approximately 70 hours and a precision of -2/+2 seconds per day after casing, meeting Superlative Chronometer standards — COSC certification followed by Rolex certification after casing. Functions include centre hour, minute and seconds hands alongside instantaneous day and date displays in apertures, secure rapid-setting, and stop-seconds for exact time setting.
