Reference 228345RBR-0025 presents 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 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 slate ombré dial is dressed with Roman numeral hour markers, lending the watch a distinguished, tonal depth. The 18 kt Everose gold President bracelet with semi-circular three-piece links secures via a concealed folding Crownclasp, maintaining the clean, uninterrupted lines of the case.
Powering the watch is the Rolex Calibre 3255, a perpetual, mechanical, self-winding movement with bidirectional winding via a Perpetual rotor and an approximately 70-hour power reserve. The oscillator employs a paramagnetic blue Parachrom hairspring and high-performance Paraflex shock absorbers, achieving a precision of -2/+2 seconds per day after casing as a Superlative Chronometer, meeting both COSC and Rolex post-casing certification standards.
