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

The Rolex Lady-Datejust 31 reference 278381RBRSDJ stands as one of the most refined iterations of a watch family that has defined elegant Swiss watchmaking for decades. Introduced in 1945, the Datejust was the first self-winding wristwatch to display the date in a window on the dial, and it has since become the definitive dress watch in Rolex's catalog. The 31mm case size occupies a sweet spot between the classic 28mm Ladies Datejust and the full 36mm Datejust, making it a versatile choice that reads as distinctly feminine while offering excellent dial legibility.

The case and bracelet of the 278381RBRSDJ are constructed in a harmonious combination of Oystersteel — Rolex's proprietary 904L stainless steel alloy prized for its exceptional corrosion resistance and polished luster — and 18k Everose gold, the brand's exclusive rose gold alloy formulated to resist fading over time. This two-tone pairing gives the watch a warm, sun-kissed aesthetic that transitions effortlessly from boardroom to evening occasion. The Oyster case is water-resistant to 100 meters (330 feet), underscoring that even this jewel-adorned model carries Rolex's hallmark robustness.

The silver dial of the 278381RBRSDJ is set with diamonds at the hour markers, transforming the chapter ring into a constellation of light. The diamond-set bezel frames the dial with an additional ring of brilliance, creating a layered play of sparkle that is unmistakably luxurious without being ostentatious. Every diamond used by Rolex is selected for its cut, color, clarity, and carat weight to meet the brand's exacting standards, ensuring the overall effect is one of coherent, enduring beauty rather than excess.

Powering the watch is a Rolex-certified automatic movement, providing the convenience of self-winding operation without the need for manual winding during regular wear. Rolex automatic movements are manufactured in-house, regulated to Superlative Chronometer standards, and certified by independent testing — a level of precision that places them among the most reliable in the industry. The combination of this movement technology with a diamond-adorned case and dial illustrates exactly why the Lady-Datejust has remained in continuous production and continuous demand since its inception.

On the wrist, the 278381RBRSDJ delivers the distinctive elegance of the five-link Jubilee bracelet, which Rolex introduced alongside the original Datejust in 1945. The Jubilee bracelet's smaller, more intricate links give it a supple, almost jewelry-like drape that flatters the wrist and complements the overall femininity of the 31mm case. In Oystersteel and Everose gold, the bracelet echoes the two-tone case perfectly, creating a unified, polished look from every angle.

At Bizak & Co., we specialize in sourcing exceptional Rolex timepieces for collectors and first-time luxury watch buyers alike. The Lady-Datejust 31 reference 278381RBRSDJ is a watch that holds its desirability across seasons, occasions, and decades — a true heirloom-grade acquisition. We invite you to contact us directly to learn more about availability, condition details, and pricing, and to experience the Bizak & Co. commitment to transparency, expertise, and white-glove service. Please note that Bizak & Co. is not an authorized Rolex dealer.