Rolex Lady-Datejust 31 31 mm 278243WMDO Steel/Yellow Gold White Mother of Pearl

The Rolex Lady-Datejust is one of the most storied references in watchmaking history, tracing its roots to 1957 when Rolex introduced a scaled version of the original Datejust to celebrate women's watchmaking at the highest level. Decades on, the Lady-Datejust has evolved into a benchmark for dress watches that are simultaneously precise, durable, and beautiful—a philosophy crystallized in the modern 31mm case size that bridges the gap between the classic 28mm Lady-Datejust and the full-sized 36mm Datejust.

Reference 278243WMDO represents the contemporary apex of that tradition. The 31mm Oyster case is crafted in Rolex's proprietary Oystersteel, a 904L stainless steel alloy renowned for its exceptional corrosion resistance and brilliant polish, then elevated with yellow gold components including the domed bezel and the center links of the Oyster bracelet. This two-tone Rolesor construction is one of Rolex's most enduring aesthetic signatures, blending practicality with unmistakable luxury.

The dial is finished in white mother-of-pearl, a natural material prized for its iridescent surface that catches and reflects light differently with every movement of the wrist. No two mother-of-pearl dials are identical, making each watch subtly one-of-a-kind. The yellow gold domed bezel arches gracefully above the dial, drawing the eye inward and reinforcing the warmth of the gold tones against the cool white and silver elements of the case and bracelet.

Powering the Lady-Datejust 31 is a Rolex automatic movement, benefiting from the brand's extensive in-house research and manufacturing expertise. Rolex automatic movements are chronometer-certified by the COSC and subject to Rolex's own stringent Superlative Chronometer testing, ensuring accuracy and reliability well beyond industry standards. The watch also carries a water resistance of 100 meters (330 feet) courtesy of the Oyster case, screw-down Twinlock crown, and solid caseback—making it genuinely suited to everyday wear, not merely a display piece.

The Oyster bracelet on this reference features the signature three-link design with polished center links in yellow gold flanked by brushed Oystersteel outer links, secured by a concealed folding Crownclasp for a clean profile on the wrist. This combination of materials and bracelet architecture ensures comfort throughout the day while maintaining the refined silhouette expected of a Rolex dress watch.

Bizak & Co. offers this Lady-Datejust 31 reference 278243WMDO as a certified authentic, brand-new timepiece. Whether you are looking to buy a Rolex Lady-Datejust 31 online, gift a landmark piece, or add a flagship two-tone reference to your collection, Bizak & Co. provides the expertise and assurance you deserve. Reach out to our team to learn more, confirm availability, or arrange purchase.