Reference 228396TBR-0024 presents the Day-Date 40 in a 40 mm Oyster case crafted from platinum, featuring a monobloc middle case, screw-down case back, and a screw-down winding crown with Twinlock double waterproofness. The bezel is set with diamonds, while a scratch-resistant sapphire crystal with a Cyclops lens over the date completes the case. Water resistance is rated to 100 metres / 330 feet.
The bright black dial is framed by the diamond bezel, and the watch displays the instantaneous day and date in twin apertures with secure rapid-setting functionality. The platinum President bracelet, composed of semi-circular three-piece links, fastens with a concealed folding Crownclasp for a seamless profile on the wrist.
Powering the watch is the Calibre 3255 perpetual, mechanical, self-winding movement from Manufacture Rolex. It offers a precision rating of -2/+2 seconds per day after casing, a power reserve of approximately 70 hours, bidirectional self-winding via a Perpetual rotor, and a paramagnetic blue Parachrom hairspring with high-performance Paraflex shock absorbers. The movement carries Superlative Chronometer certification, reflecting both COSC testing and Rolex's own certification after casing.
