Reference 228236-0007 presents the Day-Date 40 in a 40 mm Oyster case crafted from platinum, featuring a fluted bezel and scratch-resistant sapphire crystal with a Cyclops lens over the date. The blue dial is dressed with Roman numerals, while the screw-down winding crown employs a Twinlock double waterproofness system to maintain waterproofness to 100 metres / 330 feet.
The watch rides on a President bracelet in platinum, composed of semi-circular three-piece links and secured by a concealed folding Crownclasp. Inside, the self-winding Calibre 3255 — a perpetual mechanical movement manufactured by Rolex — delivers a precision of -2/+2 seconds per day after casing, COSC certified, and carries a power reserve of approximately 70 hours via bidirectional winding through a Perpetual rotor. The oscillator features a paramagnetic blue Parachrom hairspring and Paraflex shock absorbers.
Instantaneous day and date displays appear in twin apertures with a secure rapid-setting function, and stop-seconds allows for precise time setting. This example is from 2023 and is offered with its original Rolex box and papers.
