The Rolex Day-Date 40 Ref. 228235 is a captivating expression of President-level prestige, distinguished by its rare Eisenkiesel dial and the warm lustre of a solid 18K Everose gold case and bracelet. This luxurious 40mm timepiece features a dial crafted from natural eisenkiesel—a deep brown iron-oxide quartz with delicate, one-of-a-kind veining, introduced by Rolex in 2021 to confer a unique, organic personality upon the watch . The stone dial is elegantly complemented by 10 baguette-cut diamond hour markers, which are impeccably set in 18K gold to enhance the dial’s rich, textured depth . The signature fluted bezel, an iconic Rolex hallmark traditionally crafted from solid gold, frames the dial with distinction, while the renowned President bracelet, with its semi-circular three-piece links, provides the ultimate in refined comfort . At its heart, the watch is driven by the advanced in-house automatic Caliber 3255, a Superlative Chronometer-certified movement that delivers exceptional precision and a robust 70-hour power reserve . With 100 meters of water resistance and a scratch-resistant sapphire crystal with a Cyclops lens over the date, this Day-Date is a rare masterpiece, combining Rolex’s peerless craftsmanship with a contemporary, naturally exquisite dial for the most discerning collectors . Key specifications: 40mm 18K Everose gold case and President bracelet; Eisenkiesel diamond-set dial (10 baguette diamonds); fluted Everose gold bezel; Rolex Caliber 3255 automatic movement; 70-hour power reserve; 100m water resistance; sapphire crystal with Cyclops lens.