Rolex Lady-Datejust 31 31 mm 278243WRJ Steel/Yellow Gold White

The Rolex Lady-Datejust is one of the most iconic timepieces in watchmaking history — introduced in 1957 as the first self-winding, waterproof watch with a date display scaled for women's wrists, it set a standard that no other watch has surpassed in terms of longevity, recognition, and quiet prestige. Today the Lady-Datejust 31 occupies a sweet spot between the more petite 28mm and the unisex 36mm models, offering a case diameter that suits a broad range of wrist sizes without sacrificing any of the model's inherent elegance. Reference 278243WRJ is a current-generation expression of that legacy, built to the exacting tolerances Rolex demands of every watch that leaves Geneva.

The 31mm case of reference 278243WRJ is constructed in a two-tone combination of Oystersteel — Rolex's proprietary 904L stainless steel alloy, celebrated for its superior corrosion resistance and mirror-bright polish — and 18k yellow gold. The result is a warm, luminous contrast that has defined Rolex's "Rolesor" aesthetic for decades. The yellow gold domed bezel frames the dial with a smooth, classic profile that has never gone out of fashion, lending the watch an understated opulence that sets it apart from busier, more heavily jeweled configurations.

At the center of the dial sits Rolex's signature white finish, a clean and timeless canvas that keeps the watch readable at a glance while projecting an air of refinement. The white dial pairs beautifully with the yellow gold hour markers and hands that the Lady-Datejust line is known for, creating a cohesive warmth across the entire face. The date aperture — the watch's defining complication, displayed with Rolex's signature Cyclops lens on the crystal — remains crisp and legible, a small but meaningful convenience that elevates everyday usability.

Power comes from Rolex's automatic movement, a self-winding caliber whose perpetual rotor winds the mainspring through the natural motion of the wearer's wrist, ensuring the watch remains running as long as it is worn regularly. Rolex movements are manufactured in-house, subjected to intensive testing, and certified by COSC as chronometers before receiving additional proprietary testing at Rolex's own standards — a process that results in some of the most reliable and precise mechanical movements available at any price. The watch is also water resistant to 100 meters (330 feet), a meaningful specification that allows for everyday wear including swimming without concern.

The Jubilee bracelet is one of Rolex's most storied designs, originally introduced alongside the Datejust in 1945 to celebrate the brand's 40th anniversary. Its five-piece link construction — two outer links in Oystersteel flanking three polished center links in yellow gold — creates a supple, fluid drape on the wrist that is immediately recognizable and widely considered one of the most comfortable metal bracelets in the industry. On reference 278243WRJ it reinforces the two-tone character of the watch and adds a touch of bracelet jewelry-making artistry that elevates the wearing experience.

At Bizak & Co., we offer this Rolex Lady-Datejust 31 reference 278243WRJ as a certified authentic, brand-new timepiece, making it an ideal choice whether you are purchasing your first Rolex, adding a versatile two-tone piece to your collection, or seeking a meaningful gift. Our team of knowledgeable specialists is available to answer every question and guide you through a confident buying experience. Shop the Lady-Datejust 31 278243WRJ online at bizakandco.com or reach out directly — we would love to help you acquire this exceptional Rolex.