Reference 128348RBR-0064 presents the Day-Date 36 in an Oyster case crafted from 18 kt yellow gold measuring 36 mm across. The bezel is set with diamonds, while a scratch-resistant sapphire crystal with a Cyclops lens over the date keeps the dial protected. A screw-down winding crown with Twinlock double waterproofness system contributes to water resistance rated to 100 metres / 330 feet.
The white dial is appointed with Roman numerals and displays the hallmark day and date in apertures via an instantaneous, secure rapid-setting mechanism. The case is completed by the President bracelet in 18 kt yellow gold, featuring the signature semi-circular three-piece link construction and a concealed folding Crownclasp.
Inside runs the Calibre 3255, a perpetual, mechanical, self-winding movement from Manufacture Rolex offering a precision rating of -2/+2 seconds per day after casing and a power reserve of approximately 70 hours. The oscillator incorporates a paramagnetic blue Parachrom hairspring alongside high-performance Paraflex shock absorbers, and the movement carries Superlative Chronometer certification — encompassing both COSC and Rolex's own post-casing standard.
