Reference 228348RBR-0002 presents the Day-Date 40 at its most distinctive. The 40mm monobloc middle case is crafted from 18kt yellow gold and features a screw-down case back and winding crown with Twinlock double waterproofness, offering water resistance to 100 metres. A scratch-resistant sapphire crystal with a Cyclops lens over the date sits above a champagne dial, while the bezel is set with diamonds for a striking first impression.
The President bracelet — constructed from 18kt yellow gold with semi-circular three-piece links — secures via a concealed folding Crownclasp. Inside, the Calibre 3255 perpetual, mechanical, self-winding movement delivers a power reserve of approximately 70 hours and a precision rating of -2/+2 seconds per day after casing. The oscillator features a paramagnetic blue Parachrom hairspring and high-performance Paraflex shock absorbers, with bidirectional self-winding via a Perpetual rotor.
Functions include centre hour, minute, and seconds hands alongside instantaneous day and date displays in apertures with secure rapid-setting, and stop-seconds for precise time setting. The movement carries Superlative Chronometer certification, reflecting both COSC and Rolex certification after casing.
