Reference 128239-0072 presents the Day-Date 36 in an 18 kt white gold Oyster case measuring 36 mm across. The fluted bezel frames a pink dial set with 10 baguette-cut diamonds, while a scratch-resistant sapphire crystal with a Cyclops lens over the date keeps the display legible. The monobloc middle case is secured by a screw-down case back and a screw-down Twinlock winding crown, offering water resistance to 100 metres / 330 feet.
The 18 kt white gold diamond-set President bracelet closes with a concealed folding Crownclasp, completing the watch's all-white-gold composition. Inside, the Calibre 3255 — a perpetual, mechanical, self-winding manufacture Rolex movement — delivers a precision rating of -2/+2 seconds per day after casing and a power reserve of approximately 70 hours. The oscillator features a paramagnetic blue Parachrom hairspring and high-performance Paraflex shock absorbers, and the movement is COSC certified.
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 adjustment. Production year for this example is 2024.
