Rolex Lady-Datejust 31 mm 278288RBR Yellow Gold/Diamonds Green Rolex Lady-Datejust 31 mm 278288RBR Yellow…

The Rolex Lady-Datejust is one of the most enduring icons in watchmaking history, introduced as the first self-winding waterproof wristwatch with an automatically changing date designed specifically for women. Across decades it has remained the gold standard for elegance and precision on the wrist, and the modern 31mm generation represents the pinnacle of that evolution—larger than the classic 28mm yet perfectly proportioned for a refined feminine profile. Reference 278288RBR sits at the absolute apex of the Lady-Datejust family, combining precious materials, a rare dial stone, and Rolex's finest jewelry craft into a single cohesive statement.

The case of the 278288RBR is fashioned entirely from 18k yellow gold, a warm and lustrous alloy that Rolex produces in-house to its own exacting standards. Measuring 31mm across, the case strikes an ideal balance between modern presence and ladylike refinement, with the signature Oyster architecture providing robust water resistance to 100 meters (330 feet)—an assurance of durability rarely expected in a watch of this decorative caliber. The fluted President bracelet, also rendered in 18k yellow gold, completes the all-gold silhouette with its semi-circular three-piece links that articulate fluidly around the wrist.

The bezel of this reference is set with brilliant-cut diamonds, creating a continuous ring of scintillating light that frames the dial like a jeweler's setting frames a precious stone. Diamond bezels on the Lady-Datejust are hand-set by Rolex's specialist craftspeople, each stone selected for cut, clarity, and color to ensure uniformity of brilliance around the full circumference. This level of in-house gem-setting expertise is one of the details that distinguishes genuine Rolex diamond references from third-party aftermarket modifications.

Perhaps the most captivating element of the 278288RBR is its green malachite dial. Malachite is a naturally occurring copper carbonate mineral prized for its swirling, concentric banding in deep and vivid greens—no two malachite dials are ever identical, making each watch a truly one-of-a-kind object. Rolex cuts, polishes, and fits these mineral dials with extraordinary care, and on this reference the green stone is complemented by applied Roman numeral hour markers with the VI position highlighted by a diamond index, adding yet another layer of precious craft to an already remarkable canvas. The combination of warm yellow gold, brilliant diamonds, and the cool organic green of malachite is a study in contrasts that has made this dial variant among the most sought-after in the current Lady-Datejust lineup.

Powering the watch is a Rolex automatic movement, the hallmark of the brand's commitment to reliability and self-sufficiency. Rolex automatic calibers are chronometer-certified by the COSC and subsequently held to Rolex's own even stricter internal tolerances, ensuring accuracy and longevity that justify the investment. The movement is sealed within the Oyster case, protecting it from dust, pressure, and moisture, so this watch is as capable of accompanying an active lifestyle as it is of gracing a formal occasion.

Bizak & Co. is proud to offer the Rolex Lady-Datejust 31 ref. 278288RBR to discerning collectors and buyers seeking the finest pre-owned and luxury Rolex watches for sale online. Whether you are adding to an established collection, purchasing a milestone gift, or simply acquiring a watch of enduring value, this reference delivers beauty, pedigree, and Rolex's uncompromising quality in one extraordinary package. Reach out to our team at bizakandco.com to learn more, ask questions, or begin the purchase process—we are here to guide you every step of the way.