Housed in a 36 mm platinum Oyster case, the Day-Date 128236-0001 features a monobloc middle case construction with a solid screw-down case back and a screw-down Twinlock winding crown for waterproofness to 100 metres. A fluted bezel frames scratch-resistant sapphire crystal fitted with a Cyclops lens over the date aperture, lending the dial a clear and commanding view.
The silver dial is accompanied by an instantaneous day and date display in apertures with secure rapid-setting, alongside centre hour, minute, and seconds hands and a stop-seconds function for precise time setting. The platinum President bracelet, composed of semi-circular three-piece links, secures with a concealed folding Crownclasp for a seamless finish on the wrist.
Driving the watch is the Rolex Calibre 3255, a perpetual mechanical self-winding movement wound bidirectionally via a Perpetual rotor. The movement offers a precision rating of -2/+2 seconds per day after casing, a power reserve of approximately 70 hours, a paramagnetic blue Parachrom hairspring, and high-performance Paraflex shock absorbers. This reference is COSC certified.
