Rolex Datejust 31 Everose Rolesor — Rose Diamond Dial 46-Diamond Bezel | Ref. 278381RBR

Reference 278381RBR in Everose Rolesor with a full 46-diamond bezel and rose diamond dial occupies the summit of the 31 mm Datejust's decorative range, a timepiece conceived as much as jewellery as instrument. The designation 'RBR' — Rolex's internal suffix for baguette and brilliant-cut diamond settings — signals the extraordinary level of gem-setting applied here. The 46 diamonds encircling the bezel are selected and positioned by Rolex's specialist setters to ensure uniform brilliance and seamless visual continuity, the entire bezel surface consumed by stones with no metal visible between them.

The rose diamond dial takes the jewellery emphasis further still, replacing the conventional dial surface with a field of set diamonds that entirely covers the visible dial area. Rose-tinted diamonds — stones with a naturally pink or artificially colour-treated hue — create a warm, cohesive chromatic field that aligns with the Everose gold of the case and Jubilee bracelet. The combination of Oystersteel and 18 ct Everose gold in Rolesor configuration provides the structural and corrosion-resistant properties of the Oyster case while permitting the precious metal intensity appropriate to this dial specification. The date window at 3 o'clock, framed by a diamond-set surround and magnified by the Cyclops lens, retains Datejust functionality amid extensive jewellery decoration.

The calibre 2236, with its Syloxi silicon hairspring, powers the 278381RBR with a 55-hour power reserve and 28,800 vph beat frequency. The silicon Syloxi is impervious to magnetic fields that would disturb a conventional metal hairspring — a practical advantage in a heavily jewelled context where metallic components could theoretically interact with external magnetic sources. Superlative Chronometer certification confirms in-case rate accuracy of +/- 2 seconds per day, ensuring that this most decorative of Datejust configurations meets the same timekeeping standard as the most austere.