Rolex Lady-Datejust 31 31 mm 278241CDO Steel/Rose Gold Chocolate

The Rolex Lady-Datejust is one of the most enduring icons in watchmaking history, introduced in 1957 as the first self-winding waterproof wristwatch scaled for the female wrist. For decades it has defined what refined, everyday luxury looks like, combining the mechanical credibility of a full Rolex movement with proportions and aesthetics designed to complement rather than overstate. The 31 mm case size sits squarely between the classic 28 mm Lady-Datejust and the unisex 36 mm Datejust, making it the ideal choice for wearers who want a meaningful wrist presence without bulk — a size that has grown enormously popular and represents the sweet spot of the current Lady-Datejust family.

Reference 278241CDO distinguishes itself through a masterful pairing of materials and color. The case and bracelet are constructed in Rolex's proprietary combination of Oystersteel — an exceptional 904L stainless steel alloy known for its resistance to corrosion and its mirror-polish depth — and Everose gold, Rolex's exclusive 18 kt rose gold alloy formulated to resist fading over decades. The smooth domed bezel in Everose gold frames the dial with a gentle, classical curvature that references the earliest Datejust designs, consciously rejecting the fluted or gem-set alternatives in favor of pure form.

The dial itself is the undisputed centerpiece of this reference. The rich chocolate tone — a deep, warm brown with a depth that shifts subtly under different light sources — is among the most coveted Rolex dial colors in the current catalog. Set against this backdrop, diamond hour markers add brilliance and confirm the watch's position at the top of the Lady-Datejust hierarchy. The Cyclops lens over the date window at three o'clock magnifies the date 2.5× for effortless legibility, one of the hallmark functional details that has defined the Datejust since its debut.

Powering the Lady-Datejust 31 is a certified Swiss automatic movement entirely developed and manufactured in-house by Rolex, regulated to Superlative Chronometer standard — Rolex's own designation indicating accuracy to approximately +/- 2 seconds per day, a level of precision exceeding standard COSC certification. The movement is housed inside the iconic Oyster case, which provides water resistance to 100 meters (330 feet), making this watch genuinely capable of accompanying an active lifestyle while remaining an object of everyday elegance. The Oyster bracelet completes the package with its three-link architecture and the security of a folding Oysterclasp.

On the wrist, the Lady-Datejust 31 ref. 278241CDO reads as simultaneously classic and contemporary. The two-tone steel and Everose gold construction means it pairs naturally with yellow, rose, and white gold jewelry alike, while the chocolate diamond dial anchors it firmly in the premium tier. This is a watch that does not need to announce itself — it simply rewards those who look closely.

At Bizak & Co., we specialize in sourcing exceptional pre-owned and gray-market Rolex references for discerning buyers across the United States. Purchasing the Lady-Datejust 31 278241CDO through bizakandco.com means working with knowledgeable specialists who can answer your questions about the watch's specifics, help you understand market value, and ensure a secure transaction. Browse our current inventory online or reach out directly — our team is ready to help you acquire this remarkable timepiece.