Rolex Datejust 31 Yellow Gold — Dark Mother-of-Pearl Diamond Dial | Ref. 278248

Sitting between the Lady-Datejust 28 and the Datejust 36, the 31 mm Datejust occupies a case size with broad wrist appeal — substantial enough for a bold statement, compact enough for refined elegance. Reference 278248 presents the Datejust 31 in 18 ct yellow gold with a dark mother-of-pearl dial set with diamonds, a domed bezel, and an Oyster bracelet. This is a full yellow gold configuration — not Rolesor — making it a more formal, precious-metal-first choice.

The Calibre 2236 is the movement of choice for the 31 mm case: a self-winding manufacture calibre with 31 jewels, a Syloxi silicon hairspring, and a 55-hour power reserve. The Syloxi hairspring's precision geometry allows it to perform with greater consistency than traditional alloy springs, particularly in magnetically active environments common in modern workplaces. The yellow gold Oyster case offers 100 m water resistance and the distinctive three-link Oyster bracelet provides robust, daily-wear durability in precious metal.

A yellow gold Datejust 31 with a diamond-set mother-of-pearl dial represents the upper tier of the current Datejust line in terms of both materials and desirability. Dark MOP is among the more dramatic dial variants — its near-black depth contrasts sharply with the warmth of yellow gold — and the diamond hour markers ensure legibility is never compromised. This reference appeals to collectors who prize daily wearability in fully precious materials.