Reference 128399TBR-0007 presents the 36 mm Day-Date in an 18 kt white gold Oyster case featuring a monobloc middle case, screw-down case back, and a Twinlock screw-down winding crown offering waterproofness to 100 metres. Scratch-resistant sapphire crystal with a Cyclops lens over the date tops the case, while the bezel is fully set with diamonds for a richly ornamented profile.
The dial is where this piece commands attention: a blue ombré surface set with diamonds, with additional diamonds in 18 kt gold settings and baguette-cut diamonds positioned at 6 and 9 o'clock. The President bracelet in 18 kt white gold, constructed with semi-circular three-piece links, secures via a concealed folding Crownclasp for a seamless finish on the wrist.
Powering the watch is Rolex Calibre 3255, a perpetual mechanical self-winding movement offering approximately 70 hours of power reserve and a precision rating of -2/+2 seconds per day after casing. The oscillator features a paramagnetic blue Parachrom hairspring and high-performance Paraflex shock absorbers, and the movement carries Superlative Chronometer certification reflecting both COSC and Rolex's own post-casing standards.
