Reference 128345RBR-0064 presents the iconic Day-Date in a 36mm Oyster case crafted from 18 kt Everose gold, with a monobloc middle case, screw-down case back, and a screw-down Twinlock winding crown offering waterproofness to 100 metres. A diamond-set bezel frames the scratch-resistant sapphire crystal, which incorporates a Cyclops lens over the date display.
The turquoise dial is itself set with diamonds, while the hour markers in 18 kt gold carry 32 diamonds and the Roman VI and IX numerals in 18 kt gold are set with an additional 24 diamonds. The President bracelet — rendered in 18 kt Everose gold with semi-circular three-piece links — fastens via a concealed folding Crownclasp for a seamless look on the wrist.
Powering the watch is Rolex Calibre 3255, a perpetual mechanical self-winding movement with a precision of -2/+2 seconds per day after casing and a power reserve of approximately 70 hours. The oscillator employs a paramagnetic blue Parachrom hairspring alongside high-performance Paraflex shock absorbers, and the watch carries Superlative Chronometer certification, reflecting both COSC standards and Rolex's own post-casing verification.
