Rolex Lady-Datejust 28 Yellow Rolesor — White Mother-of-Pearl Diamond Dial | Ref. 279163 (2)

Sharing its reference number with the silver-dial sibling yet occupying an entirely different aesthetic register, this Lady-Datejust 28 in reference 279163 presents a white mother-of-pearl dial set with diamond hour markers — an arrangement that transforms an already elegant watch into something closer to a piece of fine jewellery. The 28 mm Yellow Rolesor case maintains the same structural architecture as all Oyster-family watches: a monobloc middle case machined from a single block of 904L steel, with 18-carat yellow gold reserved for the domed bezel, crown, and bracelet elements.

Mother-of-pearl has been prized in decorative arts for millennia, and its application as a dial material in watchmaking exploits the same optical phenomenon that makes it desirable in any medium: the iridescent interference of light passing through the nacre's aragonite platelets. White mother-of-pearl is the most luminous of the dial treatments available in this reference, its surface appearing cool and opalescent in diffuse light, yet suddenly alive with blues and greens when a direct beam of illumination strikes it. Diamond markers add points of concentrated brilliance within this diffuse shimmer.

The Calibre 2236, with its in-house Syloxi silicon hairspring, underpins the watch's practical credentials with COSC-certified timekeeping, approximately 55 hours of autonomy, and a stop-seconds function for precise synchronisation. The yellow gold Rolesor Oyster bracelet — flat three-piece links alternating steel and gold — follows the Datejust's classic two-tone template with characteristic assurance. The Easylink comfort extension in the Oysterclasp provides a practical 5 mm of adjustment for changes in wrist circumference across the day, a detail that distinguishes Rolex's bracelet engineering from that of most competitors.