Reference 128348RBR-0038 presents the Day-Date 36 in an 18 kt yellow gold Oyster case measuring 36 mm across. The bezel is set with diamonds, while the screw-down case back and Twinlock screw-down winding crown deliver waterproofness to 100 metres. A scratch-resistant sapphire crystal with a Cyclops lens over the date completes the case.
The turquoise dial is itself set with diamonds, with hour markers in 18 kt gold housing 32 diamonds and Roman numerals VI and IX in 18 kt gold set with 24 diamonds. The diamond-set President bracelet in 18 kt yellow gold fastens with a concealed folding Crownclasp, extending the watch's lavish stone-set character from dial to wrist.
Inside runs the perpetual, mechanical, self-winding Calibre 3255 Manufacture Rolex, rated to a precision of -2/+2 seconds per day after casing and certified as a Superlative Chronometer. Bidirectional winding via a Perpetual rotor supports approximately 70 hours of power reserve, while a paramagnetic blue Parachrom hairspring and Paraflex shock absorbers contribute to the movement's regulation. Day and date are displayed instantaneously in apertures with secure rapid-setting and stop-seconds functionality.
