Rolex Datejust 31 Rolesor — Dark Mother-of-Pearl Diamond Dial | Ref. 278243

Reference 278243 belongs to the current-generation 31 mm Datejust family, distinguished by its dark mother-of-pearl dial set with diamonds and executed in yellow Rolesor—a pairing of Oystersteel with 18 ct yellow gold. Dark mother-of-pearl dials occupy a compelling middle ground in Rolex's material palette: the deep, near-charcoal ground of the shell provides a dramatic contrast to the diamond hour markers, while retaining the organic luminescence intrinsic to the material.

The Calibre 2236 movement powers this reference—Rolex's current self-winding calibre for the 31 mm case size, incorporating a silicon Syloxi hairspring for enhanced precision and magnetic resistance. Yellow Rolesor construction integrates Oystersteel with yellow gold bezel, crown and Jubilee bracelet centre links, establishing a warm chromatic dialogue with the dial's diamond accents. The diamond-set dial references Rolex's Geneva gem-setting ateliers, where certified stones are individually selected and placed according to strict standards of colour, clarity and cut.

The 278243 sits within the current production Datejust 31 range, appealing to buyers who seek contemporary Rolex specifications with the tactile luxury of a diamond-set dial in a versatile Rolesor execution. Yellow gold accents add warmth that distinguishes this reference from the cooler Oystersteel or white gold alternatives in the same size tier. For collectors entering the market for a daily-wear Rolex with genuine jewellery character, the 278243 offers a well-balanced proposition combining durability, prestige and originality of specification.