Reference 128345RBR-0020 presents the 36 mm Day-Date in an 18 kt Everose gold Oyster case featuring a monobloc middle case, screw-down case back, and a screw-down winding crown with Twinlock double waterproofness. The bezel is set with diamonds, and scratch-resistant sapphire crystal with a Cyclops lens over the date completes the case, which is waterproof to 100 metres / 330 feet.
The rosé-colour dial is itself set with diamonds in 18 kt gold settings, with baguette-cut diamonds marking 6 and 9 o'clock for added depth and visual contrast. The diamond-set President bracelet in 18 kt Everose gold is secured by a concealed folding Crownclasp, carrying the distinctive three-link silhouette that has long defined this reference.
Inside beats the perpetual, mechanical, self-winding Calibre 3255, certified as a Superlative Chronometer to a precision of -2/+2 seconds per day after casing. The movement features a paramagnetic blue Parachrom hairspring, high-performance Paraflex shock absorbers, bidirectional winding via a Perpetual rotor, and a power reserve of approximately 70 hours. Day and date are displayed instantaneously in apertures with secure rapid-setting and stop-seconds for precise time adjustment.
