Housed in a 36 mm platinum Oyster case, the Day-Date 128236-0018 features a fluted bezel, solid case back, and a screw-down winding crown with the Twinlock double waterproofness system. Scratch-resistant sapphire crystal with a Cyclops lens over the date window tops the case, which is rated waterproof to 100 metres / 330 feet.
The ice blue dial is dressed with Roman numeral hour markers and displays the day and date in dedicated apertures with instantaneous, secure rapid-setting. A platinum President bracelet with semi-circular three-piece links and a concealed folding Crownclasp completes the watch.
Power comes from the Rolex Calibre 3255, a perpetual mechanical self-winding movement offering a precision rating of -2/+2 seconds per day after casing, approximately 70 hours of power reserve, a paramagnetic blue Parachrom hairspring, Paraflex shock absorbers, and bidirectional winding via Perpetual rotor. The movement is COSC certified.
