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

The Rolex Lady-Datejust 31 is one of the most enduring icons in watchmaking, tracing its lineage to the original Datejust introduced in 1945 as the world's first self-winding wristwatch to display the date automatically at 3 o'clock through a magnifying cyclops lens. Over the decades Rolex refined the Lady-Datejust into a collection purpose-built for the feminine wrist, balancing precision engineering with genuine jewelry-grade aesthetics. Reference 278243WMDJ represents a contemporary expression of that tradition, arriving brand new with every detail dialed in to modern Rolex standards.

At 31mm, the case occupies a sweet spot between the slender 28mm Lady-Datejust and the full 36mm Datejust, offering a confident yet classically proportioned presence on the wrist. The case and bracelet are constructed in a combination of Oystersteel—Rolex's proprietary 904L stainless steel renowned for its exceptional corrosion resistance and mirror-like polish—and warm 18-karat yellow gold, a pairing that gives the watch its signature two-tone character. The yellow gold domed bezel crowns the case with a clean, unadorned arc that keeps the spotlight on the extraordinary dial.

The white mother-of-pearl dial is where this reference truly captivates. Mother-of-pearl is sourced from the inner lining of mollusc shells and is prized for its organic iridescence—the way it shifts between creamy white, soft pink, and subtle silver depending on the angle of light is impossible to replicate with lacquer or enamel. On the 278243WMDJ this luminous surface serves as the central stage, complemented by hour markers and hands in yellow gold tones that maintain tonal harmony with the bezel and bracelet links.

Power comes from Rolex's automatic movement, a self-winding caliber that winds continuously via the Perpetual rotor as the wearer moves throughout the day—no manual winding required. Rolex movements are manufactured and tested entirely in-house, certified as chronometers by the COSC (Contrôle Officiel Suisse des Chronomètres) and then held to Rolex's own even stricter Superlative Chronometer standard before leaving the manufacture. The result is a level of accuracy and reliability that justifies the watch's status as a lifetime investment. Water resistance is rated to 100 meters (330 feet), meaning the Lady-Datejust 31 handles daily life—swimming, rain, and hand-washing—with complete confidence.

The five-piece link Jubilee bracelet, introduced by Rolex in 1945 alongside the original Datejust, is considered one of the most elegant metal bracelets ever designed. Its alternating brushed and polished links create a supple, almost fabric-like drape on the wrist, and the concealed Crownclasp closure ensures a seamless, secure fit. Together with the domed bezel and mother-of-pearl dial, the Jubilee bracelet completes an ensemble that reads as both sportily robust and unambiguously refined.

Bizak and Co. offers this Rolex Lady-Datejust 31 reference 278243WMDJ as a certified authentic brand-new example—a rare opportunity to acquire a current-production Rolex at competitive market pricing outside the authorized dealer network. Whether you are buying this Lady-Datejust 31 for sale as a personal indulgence, a milestone gift, or a long-term asset, our team at bizakandco.com is available to answer every question, provide detailed condition photographs on request, and ensure a secure, fully insured delivery. Reach out today to make this iconic timepiece yours.