Reference 128238-0081 presents the Day-Date 36 in a round 36 mm case crafted from 18K yellow gold, featuring a fluted bezel and scratch-resistant sapphire crystal with a Cyclops lens positioned over the date. The Oyster architecture incorporates a monobloc middle case, a solid screw-down case back, and a screw-down Twinlock winding crown, together delivering waterproofness to 100 metres / 330 feet.
The white dial displays the day and date through instantaneous apertures with secure rapid-setting, accompanied by centre hour, minute, and seconds hands with a stop-seconds function for precise time setting. The 18K yellow gold President bracelet — composed of semi-circular three-piece links — fastens with a concealed folding Crownclasp for a clean, uninterrupted profile.
Power comes from the Calibre 3255, a perpetual mechanical self-winding movement produced by Manufacture Rolex, offering bidirectional winding via a Perpetual rotor, a paramagnetic blue Parachrom hairspring, high-performance Paraflex shock absorbers, and a precision rating of -2/+2 seconds per day after casing. The movement holds Superlative Chronometer certification, reflecting both COSC and Rolex's own post-casing standards.
