Reference 228345RBR-0012 houses the Day-Date 40 in a 40 mm Oyster case crafted from 18 kt Everose gold, featuring a monobloc middle case, screw-down case back, and a screw-down Twinlock double waterproofness winding crown. The bezel is set with diamonds, while scratch-resistant sapphire crystal with a Cyclops lens over the date completes the case. Water resistance extends to 100 metres / 330 feet.
The white dial is dressed with Roman numerals, lending the watch a classical legibility. The 18 kt Everose gold President bracelet — formed from semi-circular three-piece links — fastens via a concealed folding Crownclasp, maintaining the clean lines of the case.
Inside beats the Calibre 3255, a perpetual, mechanical, self-winding movement from Manufacture Rolex. It delivers a precision of -2/+2 seconds per day after casing, an approximately 70-hour power reserve, bidirectional winding via Perpetual rotor, and a paramagnetic blue Parachrom hairspring with Paraflex shock absorbers. Functions include centre hour, minute, and seconds hands alongside instantaneous day and date displays with secure rapid-setting and stop-seconds. The movement holds Superlative Chronometer certification (COSC plus Rolex certification after casing). Production year: 2023.
