Housed in a 36 mm round case crafted from 18K yellow gold, the Day-Date 36 ref. 128238-0052 features a monobloc middle case, solid case back, and screw-down winding crown equipped with Rolex's Twinlock double waterproofness system. A fluted bezel frames the scratch-resistant sapphire crystal, which incorporates a Cyclops lens over the date display. The case is waterproof to 100 metres / 330 feet.
The dial is diamond-paved and set with 10 baguette-cut, rainbow-coloured sapphires, lending the watch a vivid, polychromatic character. The 18K yellow gold bracelet carries the diamond-set President name and closes via a concealed folding Crownclasp.
Powering the watch is Rolex's perpetual, mechanical, self-winding Calibre 3255, offering a power reserve of approximately 70 hours and a precision rating of -2/+2 seconds per day after casing. The movement features a paramagnetic blue Parachrom hairspring, high-performance Paraflex shock absorbers, and bidirectional self-winding via a Perpetual rotor. Functions include centre hour, minute, and seconds hands, along with instantaneous day and date displays in apertures and stop-seconds for precise time setting. The Calibre 3255 holds Superlative Chronometer status, reflecting both COSC certification and Rolex's own certification after casing.
