Housed in a 36 mm Oyster case crafted from 18 kt yellow gold, the Day-Date 36 ref. 128348RBR-0065 features a bezel set with diamonds and a white dial marked by Roman numeral hour indices. A scratch-resistant sapphire crystal with a Cyclops lens over the date window completes the case, which is waterproof to 100 metres courtesy of a screw-down Twinlock winding crown and monobloc middle case construction.
The diamond-set President bracelet in 18 kt yellow gold secures via a concealed folding Crownclasp, extending the watch's all-gold-and-diamond presence from case to wrist. Inside, Calibre 3255 — a perpetual, mechanical, self-winding movement from Manufacture Rolex — delivers a precision of -2/+2 seconds per day after casing and an approximate power reserve of 70 hours through bidirectional winding via the Perpetual rotor.
The oscillator employs a paramagnetic blue Parachrom hairspring alongside high-performance Paraflex shock absorbers, while functions include center hour, minute, and seconds hands with instantaneous day and date displays in dedicated apertures, secure rapid-setting, and stop-seconds for precise time setting. The watch carries Superlative Chronometer certification, reflecting both COSC and Rolex certification after casing.
