Rolex Day-Date 36 mm

The Rolex Day-Date 36 mm, reference 128399TBR-0001, is cased in 18 ct white gold measuring 36 mm across. The bezel is set with diamonds, and the case follows Rolex's Oyster architecture with a monobloc middle case and screw-down crown and back. A scratch-resistant sapphire crystal sits over the silver dial, with a Cyclops lens magnifying the date. Inside is the calibre 3255, a self-winding movement with a paramagnetic blue Parachrom hairspring and roughly 70 hours of power reserve; Rolex certifies it as a Superlative Chronometer. The dial shows day and date apertures alongside central seconds, standard functions for this Day-Date. The white gold President bracelet closes with a concealed folding Crownclasp. Rolex rates the case to 100 metres of water resistance.