The Rolex Datejust 31 reference 278271-0025 is a mid-size luxury timepiece characterized by its Everose Rolesor construction, which harmoniously blends durable Oystersteel with 18k Everose gold. This model features a 31mm Oyster case equipped with a screw-down winding crown and a Twinlock double waterproofness system, ensuring water resistance up to 100 meters. The aesthetic is defined by a signature fluted bezel in Everose gold and a unique white mother-of-pearl dial, which is adorned with ten diamonds set in 18k gold settings. A scratch-resistant sapphire crystal with a Cyclops lens protects the dial and provides magnification for the date display.
At the heart of the timepiece is the manufacture caliber 2236, a self-winding mechanical movement that represents a new generation of Rolex engineering. It incorporates a patented Syloxi hairspring in silicon, which offers superior resistance to magnetic fields and temperature variations, alongside high-performance Paraflex shock absorbers. This chronometer-certified movement provides a power reserve of approximately 55 hours and maintains a precision of -2/+2 seconds per day. The watch is fitted with a three-piece solid link Oyster bracelet, featuring a folding Oysterclasp and the Easylink 5mm comfort extension system for easy adjustments.
General reviews of the Datejust 31 emphasize its versatility as both a sophisticated formal accessory and a robust daily watch. Enthusiasts frequently praise the 31mm diameter for offering a balanced presence that bridges the gap between traditional cocktail watches and larger modern sport models. The inclusion of the caliber 2236 is noted as a significant technical upgrade, providing modern reliability within a classic silhouette. While the mother-of-pearl and diamond-set dial is widely admired for its unique natural patterns and elegance, some collectors note that the high demand for Rolesor models can impact market availability.