Rolex Lady-Datejust 31 31 mm 278381RBRSDO Steel/Rose Gold/Diamonds Silver

The Rolex Lady-Datejust is one of the most enduring icons in fine watchmaking—a collection that has defined elegant wristwear for women since Rolex introduced the Datejust line in 1945. The Lady-Datejust in the 31mm format occupies a sweet spot in the range: larger than the classic 28mm for those who prefer a bolder presence, yet wholly feminine in proportion and character. Reference 278381RBRSDO represents this lineage at its most lavish, combining Rolex's workhorse Oystersteel with the brand's proprietary 18k Everose gold—an alloy formulated for lasting color stability—and enriching both the dial and bezel with diamonds.

The case of the 278381RBRSDO measures 31mm in diameter, a size that translates to exceptional wrist versatility. It sits comfortably on a range of wrist sizes and reads equally well in boardroom attire or evening dress. The Oyster case architecture—a hallmark of Rolex engineering—provides robust protection for the movement within, and the watch carries a water resistance of 100 meters (330 feet), a reassuring specification that speaks to the rigorous construction standards Rolex applies even to its most ornate dress pieces.

The bezel on reference 278381RBRSDO is set with diamonds, framing the silver dial in a continuous ribbon of brilliant-cut stones that catch and scatter light with every movement of the wrist. The dial itself is silver-toned and set with diamond hour markers, eliminating applied indices in favor of scintillating gemstones that mark each hour. Together, the diamond bezel and diamond dial create a cohesive high-jewelry aesthetic that elevates this reference well beyond a standard steel-and-gold Datejust. The date aperture at 3 o'clock, framed by Rolex's signature Cyclops lens on the sapphire crystal, remains an instantly recognizable design element.

Beneath the Oyster case, this Lady-Datejust is driven by an automatic movement—the brand of reliability and precision for which Rolex is globally celebrated. The movement winds itself via the motion of the wearer's wrist, ensuring the watch remains ready to wear without manual winding for anyone who wears it regularly. This self-sufficiency, combined with Rolex's exacting manufacturing tolerances, makes the Lady-Datejust 31 as practical as it is beautiful.

The Oyster bracelet completes the package with characteristic Rolex polish. Its three-piece link construction in Oystersteel—accented by the Everose gold elements that run through the case—provides both security and comfort, and the folding Oysterclasp ensures the bracelet stays securely on the wrist. The interplay of brushed and polished surfaces across the bracelet mirrors the contrast found on the case and dial, giving the watch a cohesive and sophisticated visual rhythm.

At Bizak & Co., we specialize in sourcing exceptional Rolex references like the Lady-Datejust 31 278381RBRSDO for discerning collectors and first-time luxury buyers alike. This is a reference that holds enduring desirability thanks to its diamond detailing, two-tone material combination, and the universal prestige of the Datejust name. Whether you are adding to an established collection or seeking a signature timepiece, we invite you to contact the Bizak & Co. team at bizakandco.com to discuss availability, condition details, and how to make this watch yours. Please note that Bizak & Co. is not an authorized Rolex dealer.