Rolex Lady-Datejust 31 31 mm 278341RBRSDO Steel/Rose Gold/Diamonds Silver

The Rolex Lady-Datejust is one of the most storied watches in horological history, widely recognized as the first self-winding waterproof wristwatch designed specifically for women when it was introduced in the mid-twentieth century. Since then it has evolved through decades of refinement while retaining the timeless proportions and unmistakable silhouette that have made the Datejust family iconic. The 31mm case size occupies a sweet spot in the Lady-Datejust range — substantial enough to read with authority on the wrist yet perfectly scaled for a feminine profile, making reference 278341RBRSDO one of the most sought-after expressions of this lineage.

The case and bracelet of reference 278341RBRSDO are constructed in a harmonious blend of Oystersteel — Rolex's proprietary 904L stainless steel renowned for its exceptional corrosion resistance and mirror-bright polish — and 18k Everose gold, the brand's exclusive rose-gold alloy engineered to resist fading over time. This two-tone Rolesor construction has long been a hallmark of aspirational Rolex design, offering the warmth of precious metal alongside the durability of steel at a more accessible investment point than full gold models.

The silver dial provides a luminous, versatile canvas that pairs beautifully with the warm rose-gold tones surrounding it. Dials on Lady-Datejust references at this level typically feature applied hour markers and refined finishing that catches light from every angle, lending the watch an understated brilliance suited to both boardroom and black-tie occasions. The date aperture at three o'clock — the defining complication of every Datejust — is framed by Rolex's signature Cyclops lens on the crystal, magnifying the date 2.5× for effortless legibility.

The crown jewel of this reference is its domed bezel set with diamonds in 18k Everose gold. The domed profile gives the watch a sculptural, three-dimensional presence on the wrist, while the individually set diamonds capture and scatter light with extraordinary intensity. This bezel configuration transforms a classic sports-elegant watch into something genuinely jewellery-grade, and it is the detail that most distinguishes 278341RBRSDO from plainer Lady-Datejust variants. Water resistance to 100 meters (330 feet) thanks to the Oyster case architecture ensures that all this luxury is thoroughly protected for daily wear.

The Oyster bracelet — Rolex's oldest and most recognisable integrated bracelet design — completes the package with its flat three-piece links that sit flush and comfortable against the wrist. In the two-tone execution on this reference, alternating steel and Everose gold links echo the case construction and create a cohesive, polished aesthetic from every angle. The bracelet's Oysterclasp with the Easylink comfort extension system (a standard feature on modern Rolex Oyster bracelets) allows fine adjustment for changes in wrist size throughout the day.

At Bizak & Co., we specialise in sourcing and presenting exceptional pre-owned and grey-market Rolex references for discerning buyers across the United States. The Lady-Datejust 31 ref. 278341RBRSDO represents a compelling opportunity to acquire a genuinely luxurious, diamond-adorned Rolex with lasting value and universal wearability. Browse this listing on bizakandco.com, or reach out directly to our team to discuss pricing, condition details, and secure checkout options — we are here to make your purchase seamless and confidently informed.