Rolex Lady-Datejust 31 31 mm 278288RBRBMP Yellow Gold/Diamonds Black Mother of Pearl Rolex Lady-Datejust 31 31 mm 278288RBRBMP Yellow…

The Rolex Lady-Datejust is one of the most enduring icons in luxury watchmaking, tracing its lineage to 1957 when Rolex introduced a scaled, feminine interpretation of the original Datejust—itself the world's first self-winding wristwatch to display the date in a magnified window on the dial. Across more than six decades, the Lady-Datejust has remained synonymous with refined elegance, technical mastery, and effortless versatility. Reference 278288RBRBMP represents the modern 31mm expression of this legacy, blending Rolex's finest materials with an unmistakably glamorous aesthetic that resonates with discerning collectors worldwide.

The 31mm case of reference 278288RBRBMP is fashioned entirely in 18k yellow gold, a warm, precious metal that Rolex produces in-house to its own strict metallurgical standards. The fluted profile of the case and the supple links of the President bracelet—introduced by Rolex in 1956 and reserved exclusively for their gold and platinum models—work in perfect visual harmony, lending the watch a continuous, sculptural quality on the wrist. The President bracelet's semi-circular three-piece links remain one of the most coveted bracelet designs in horology, and on this reference they elevate the piece firmly into jewelry-watch territory.

The bezel of the 278288RBRBMP is set with brilliant-cut diamonds, amplifying the watch's luminosity and adding an unmistakable haute joaillerie character. Rolex's gemologists select each stone individually for cut, color, and clarity before the in-house setting specialists secure them with extraordinary precision. The result is a bezel that captures and refracts light from every angle, ensuring the watch draws attention from across a room.

At the center of the dial lies a panel of black mother-of-pearl, a material prized for its deep, shifting iridescence—no two dials are ever identical, as the organic nature of mother-of-pearl means each example displays its own unique interplay of light and color. Against the warm yellow gold of the surrounds and the sparkle of the diamond bezel, the black mother-of-pearl creates a sophisticated contrast that is simultaneously bold and refined. The date aperture at three o'clock is magnified by Rolex's signature Cyclops lens, delivering the brand's characteristic legibility even on a jewel-set dress watch.

Powering the Lady-Datejust 31 is a certified Swiss automatic movement, regulated and certified as a Superlative Chronometer by Rolex—a proprietary designation denoting accuracy and reliability performance that exceeds standard COSC certification requirements. The watch is also water-resistant to 100 meters (330 feet), a testament to Rolex's Oyster case construction and a practical assurance that the watch can accompany its owner through daily life without compromise. For a watch of this jewel-set nature, that combination of precision movement, robust water resistance, and flawless finishing is what sets Rolex apart from purely decorative alternatives.

At Bizak & Co., we curate only the most desirable Rolex references for collectors and connoisseurs across the United States. The Lady-Datejust 31 in reference 278288RBRBMP—yellow gold, diamond bezel, black mother-of-pearl dial, President bracelet—represents the pinnacle of this iconic line and is among the most sought-after configurations on the secondary market. Whether you are adding to an established collection or acquiring your first significant timepiece, our team is ready to guide you through every detail. Contact us or purchase this reference directly online at bizakandco.com.