Rolex Lady-Datejust 31 31 mm 278383RBRWMDJ Steel/Yellow Gold/Diamonds White Mother of Pearl

The Rolex Lady-Datejust is one of the most enduring icons in watchmaking history, introduced as the first self-winding waterproof wristwatch with a date display sized specifically for women. Across decades the line has evolved in materials and decoration while preserving the clean, architecturally balanced aesthetic that made it a cultural touchstone. Reference 278383RBRWMDJ represents the modern 31mm generation of that legacy, a size that sits gracefully on a wide range of wrists and bridges the gap between classic ladies' proportions and the bolder dimensions of contemporary watch taste.

The 31mm Oyster case of the 278383RBRWMDJ is rendered in a two-tone combination of Oystersteel—Rolex's proprietary 904L stainless steel prized for its exceptional corrosion resistance and mirror-bright polish—and 18k yellow gold, which appears on the bezel, crown, and Jubilee bracelet center links. This interplay of cool steel and warm gold is a signature Rolex aesthetic known to collectors as the "Rolesor" construction, and it lends the watch an unmistakable versatility that reads equally well dressed up or down.

The bezel of the 278383RBRWMDJ is set with brilliant-cut diamonds, adding a crown of light that catches and disperses illumination with every movement of the wrist. Beneath it, the white mother-of-pearl dial delivers an ever-shifting, organic luminosity that no painted surface can replicate—each piece of mother-of-pearl is unique, meaning no two dials are precisely alike. Together, the diamond bezel and mother-of-pearl dial elevate this Lady-Datejust firmly into jewelry-watch territory without sacrificing the legibility and reliability Rolex demands of every reference.

Powering the watch is an automatic movement, the self-winding mechanical engine that has long defined Rolex's commitment to performance and ease of ownership. The case carries a water resistance rating of 100 meters (330 feet), a testament to the integrity of the Oyster case construction with its screw-down crown—exceptional for a dress watch and more than sufficient for everyday wear including swimming and splashing. The combination of automatic convenience and robust water resistance means this Lady-Datejust is designed to be worn, not merely admired.

The five-piece link Jubilee bracelet, originally introduced alongside the Datejust in 1945, completes the picture with a refined, almost jewel-like suppleness on the wrist. Its polished center links harmonize with the yellow gold elements of the case while alternating brushed outer links echo the steel, creating a bracelet that is as comfortable as it is beautiful. Whether sought as a personal milestone gift, a wardrobe cornerstone, or a considered horological investment, the Rolex Lady-Datejust 31 reference 278383RBRWMDJ available at Bizak & Co. represents an opportunity to own one of watchmaking's most coveted references. Reach out to our team at bizakandco.com for pricing, availability, and white-glove assistance.