The Rolex Day-Date 40 reference 228345RBR-0016 is a high-prestige timepiece featuring a 40mm case crafted from 18k Everose gold, an exclusive pink gold alloy patented by Rolex. A primary focal point of this model is the Eisenkiesel dial, a deep brown decorative stone made from iron-oxide veined quartz, which was first introduced to the collection in 2021. This unique natural stone dial is further elevated by ten baguette-cut diamond hour markers and is framed by a fixed bezel set with 48 brilliant-cut diamonds. The watch is presented on the iconic three-piece link President bracelet, which includes a concealed folding Crownclasp for a seamless aesthetic.
The timepiece is powered by the in-house caliber 3255, a self-winding mechanical movement that is a COSC-certified Superlative Chronometer, offering a precision of -2/+2 seconds per day. This movement provides a substantial 70-hour power reserve and features high-performance Paraflex shock absorbers and a paramagnetic blue Parachrom hairspring for enhanced reliability. In terms of complications, the watch displays the day of the week spelled out in full at the 12 o’clock position and the date at 3 o’clock, both of which change instantaneously at midnight. The Oyster case architecture, equipped with a screw-down Twinlock crown, ensures water resistance up to 100 meters.
General reviews of the 228345RBR-0016 emphasize its striking visual appeal, particularly the mesmerizing patterns of the Eisenkiesel stone which ensure that no two dials are exactly alike. Enthusiasts often praise the warm tones of the Everose gold in combination with the earthy brown of the quartz dial as a sophisticated and modern take on the classic Day-Date design. While it is widely regarded as a pinnacle of luxury and craftsmanship, collectors often note that its gem-set bezel and rare stone dial make it more suitable for special occasions rather than daily wear. The model is highly sought after due to its limited circulation and the meticulous hand-finishing required for the delicate stone discs.