Rolex Lady-Datejust 31 31 mm 278343RBRWRJ Steel/Yellow Gold/Diamonds White

The Rolex Lady-Datejust is the definitive expression of what a refined dress watch should be. Introduced in 1957 as the first self-winding waterproof watch designed specifically for women, the Lady-Datejust established a legacy of horological precision paired with enduring elegance that has remained unmatched for decades. The 31mm case size sits at the sweet spot between the classic 28mm Lady-Datejust and the larger Datejust 36, offering a confident presence on the wrist without sacrificing femininity.

Reference 278343RBRWRJ is among the most glamorous configurations Rolex offers in the Lady-Datejust 31 lineup. The case and bracelet are constructed in Rolex's proprietary Oystersteel — an alloy from the 904L steel family celebrated for its exceptional corrosion resistance and brilliant polish — integrated with warm 18k yellow gold on the bezel, crown, and bracelet center links. This Rolesor combination has been a hallmark of the Datejust family for generations, immediately recognizable yet never ostentatious.

The white dial with Roman numeral hour markers is a study in classic dial craft. Roman numerals lend a formal, almost architectural quality to the dial, their crisp geometry contrasting beautifully against the white background. The yellow gold domed bezel is fully set with diamonds, catching light from every angle and amplifying the watch's inherent luxury without diminishing its wearability. Every element of this dial configuration is deliberately chosen to age gracefully and remain stylish across decades of changing trends.

Power comes from Rolex's automatic movement, delivering the reliable self-winding performance and date functionality that the Datejust line has delivered since 1945. The watch carries a water resistance rating of 100 meters (330 feet), courtesy of the Oyster case architecture — the screw-down Triplock crown and scratch-resistant sapphire crystal ensure the movement is protected in everyday environments well beyond what most dress watches offer. This practical robustness is a core part of the Rolex value proposition: genuine luxury that you can actually wear.

The five-piece Jubilee bracelet, originally introduced alongside the Datejust in 1945, is arguably the most iconic bracelet in watchmaking history. Its alternating polished and satin-finished links give it an extraordinarily supple drape on the wrist, and on this reference the interplay of steel outer links with yellow gold center links perfectly echoes the two-tone Rolesor case. The Jubilee is designed to be comfortable for all-day wear, flexible enough to move naturally with the wrist.

At Bizak & Co., we specialize in sourcing and presenting exceptional Rolex timepieces for discerning buyers across the United States. The Lady-Datejust 31 ref. 278343RBRWRJ represents outstanding long-term value — its diamond bezel, two-tone configuration, and iconic model family make it consistently desirable in both the primary and secondary markets. Whether you are buying your first luxury watch or adding a landmark piece to an established collection, we invite you to reach out to our team at bizakandco.com to discuss this reference, confirm current availability, and receive the attentive service you deserve.