Rolex Lady-Datejust 28 Everose Rolesor — White Mother-of-Pearl Diamond Dial, Diamond Bezel | Ref. 279381RBR

The 279381RBR is among the most elaborately appointed references in the current Lady-Datejust 28 range. Built on Everose Rolesor — Rolex's proprietary 18ct Everose gold alloyed to resist fading over time, combined with Oystersteel — it presents a warm rose-toned profile distinct from yellow Rolesor or white gold variants. The diamond-set bezel, designated by the "RBR" suffix in the reference number, replaces the traditional fluted or smooth bezel with a continuous channel of brilliant-cut diamonds that encircles the case at the midpoint between dial and crystal. Few production Datejust references carry this level of factory gem-setting.

Calibre 2236 drives this reference, the movement Rolex developed specifically for its 26–31mm case family. Its Syloxi hairspring — manufactured from silicon in-house — provides exceptional frequency stability across temperature changes and eliminates the magnetic sensitivity associated with conventional alloy hairsprings. The white mother-of-pearl dial, set with diamond hour markers, interacts with the Everose Rolesor and gem bezel to create a layered luminosity; MOP dials shift in appearance depending on light angle, ensuring no two moments of wearing look quite the same. The President bracelet completes the combination with its three-link construction in Oystersteel and Everose gold.

Collector interest in RBR references centres on the factory gem-setting provenance — aftermarket diamond bezels exist, but the Rolex factory configuration carries unambiguous authentication value and typically commands a premium accordingly. The 279381RBR sits at the upper end of the Lady-Datejust specification range, making it suitable for buyers who prioritise completeness of factory specification. MOP dials in pink-toned Rolesor configurations have demonstrated consistent demand in the secondary market, particularly among buyers who view the piece as both wearable jewellery and a certified precision instrument.