Rolex Datejust 31 Everose Gold — 46-Diamond Bezel, Rose Index Dial | Ref. 278285RBR

Released at Baselworld 2019, ref. 278285RBR represents the Datejust 31 at the apex of the collection's precious-metal offering — a watch constructed entirely in 18-carat Everose gold, Rolex's proprietary alloy whose rose hue is permanently stabilised by a precisely calibrated platinum content. Unlike conventional rose gold alloys whose colour can shift or fade with oxidation, Everose gold retains its warm chromatic character indefinitely — a quality especially meaningful in a watch of this gemological richness. The solid Everose gold case, measuring 31 mm in diameter, wears with a weight and warmth that only full precious-metal construction can convey.

The bezel, set with 46 brilliant-cut diamonds selected for uniformity of cut, colour, and clarity, transforms the conventional circular bezel frame into a continuous band of prismatic luminosity. The rose dial beneath — a soft blush field that echoes the gold of the case — carries ten individually set diamond hour markers that mirror the bezel stones in cut quality while occupying a different scale and register. The interplay of the rose ground against the cool brilliance of the diamonds and the warm gold of the case is a study in chromatic calibration executed with Rolex's characteristic precision.

Calibre 2236, Rolex's self-winding movement engineered for the Datejust 31 format, powers this reference with the Syloxi silicon hairspring — Rolex's proprietary oscillator material, manufactured via deep reactive ion etching and impervious to magnetic fields without the need for additional shielding. Approximately 55 hours of power reserve and Superlative Chronometer certification (±2 seconds per day) confirm its technical credentials. The 18-carat Everose gold President bracelet — exclusive to precious-metal references — with its semi-circular three-piece links and concealed Crownclasp elevates ref. 278285RBR into the uppermost register of the Datejust 31 hierarchy.