Reference 128238-0008 presents the Day-Date 36 in a 36 mm round case crafted entirely in 18k yellow gold, featuring a fluted bezel and a solid case back. The Oyster architecture employs a monobloc middle case with a screw-down case back and a screw-down Twinlock winding crown, delivering waterproofness to 100 metres / 330 feet. A scratch-resistant sapphire crystal with a Cyclops lens over the date completes the case.
The champagne-colour dial is set with diamonds in 18k gold settings, with baguette-cut diamonds marking 6 and 9 o'clock for added depth and presence. The 18k yellow gold President bracelet — composed of semi-circular three-piece links — fastens with a concealed folding Crownclasp, lending the watch its signature refined silhouette.
Power comes from the Calibre 3255, a perpetual mechanical self-winding movement from Manufacture Rolex. It delivers a precision of -2/+2 seconds per day after casing, a power reserve of approximately 70 hours, and is certified as a Superlative Chronometer. The oscillator features a paramagnetic blue Parachrom hairspring and high-performance Paraflex shock absorbers, while bidirectional winding is achieved via the Perpetual rotor.
