Rolex Datejust 31 White Rolesor — White Mother-of-Pearl Diamond Dial | Ref. 278344RBR

Reference 278344RBR articulates the Datejust 31 in its most opulent expression: White Rolesor — Rolex's proprietary combination of Oystersteel and 18 ct white gold — paired with a domed bezel set with 24 brilliant-cut diamonds and a luminous white mother-of-pearl dial further enriched with diamond hour markers. The interplay between the iridescent dial, the prismatic diamond bezel, and the cool brilliance of white gold creates a watch of exceptional chromatic harmony.

At the heart of this 31 mm Oyster case beats Calibre 2236, Rolex's purpose-built movement for the mid-size Datejust. Introduced in 2018, the 2236 is noteworthy for its Syloxi silicon hairspring — a Rolex-manufactured component offering superior resistance to magnetic fields and temperature variations compared to traditional alloy hairsprings. The movement delivers approximately 55 hours of power reserve and is certified as a Superlative Chronometer. The bidirectional Perpetual rotor winds the mainspring efficiently, ensuring continuous reliability on the wrist.

The 278344RBR sits at the apex of the Datejust 31 collection, and its diamond bezel and dial configuration place it firmly in the fine jewellery watch category. Collectors drawn to this reference typically seek a watch that transitions seamlessly from boardroom to evening occasion, the mother-of-pearl dial providing an organic, ever-changing backdrop to the diamond indices. With full box and papers, examples command strong premiums on the secondary market, and the combination of diamonds and mother-of-pearl ensures enduring desirability.