Rolex Lady-Datejust 31 31 mm 278341RBRWRO Steel/Rose Gold/Diamonds White

The Rolex Lady-Datejust is one of the most enduring icons in fine watchmaking, and reference 278341RBRWRO represents the model at its most sophisticated. Introduced as part of the modern 31 mm Lady-Datejust family, this reference pairs the sporty architecture of the Oyster case with the warmth of 18k Everose gold and the brilliance of a diamond-set bezel, producing a watch that moves effortlessly from boardroom to black-tie occasion.

At 31 mm the case occupies a versatile middle ground—larger than the classic 28 mm Lady-Datejust yet elegantly scaled for a wide range of wrists. The case itself is built in Rolex's proprietary Oystersteel, a corrosion-resistant steel alloy used exclusively by the brand, while the bezel, crown and certain case components are rendered in 18k Everose gold, Rolex's own rose gold formula engineered to resist fading over decades of wear.

The white dial is a study in understated luxury. Its clean surface allows the applied hour markers and the iconic Cyclops lens—magnifying the date window at 3 o'clock—to read with exceptional clarity. The domed bezel is set with brilliant-cut diamonds that catch light from every angle, providing a jewellery dimension that elevates the watch well beyond a simple timekeeping instrument without overwhelming its classic Datejust proportions.

Power comes from a Rolex-certified automatic movement, the same commitment to precision that underpins every reference in the current Lady-Datejust collection. The watch is water resistant to 100 metres (330 feet) courtesy of the screw-down Twinlock winding crown and the hermetically sealed Oyster case, confirming that this is not merely a dress piece but a fully capable daily companion built to Rolex's exacting Superlative Chronometer standards.

The Oyster bracelet in matching Oystersteel and Everose gold completes the two-tone aesthetic and fastens with a folding Crownclasp for a secure, comfortable fit. The interplay of brushed and polished surfaces across the bracelet mirrors the case finishing and reinforces the sense of meticulous craftsmanship that has defined the Datejust since its debut.

Bizak & Co. is proud to offer the Rolex Lady-Datejust 31 reference 278341RBRWRO for sale online at bizakandco.com. Whether you are buying your first Rolex or adding a diamond-bezel two-tone piece to an existing collection, our team is available to answer every question, provide detailed photos, and guide you through a confident purchase. Please note that Bizak & Co. is not an authorized Rolex dealer; all watches are sold on the secondary market.