Rolex Lady-Datejust 31 31 mm 278343RBRCDJ Steel/Yellow Gold/Diamonds Champagne

The Rolex Lady-Datejust 31 reference 278343RBRCDJ is one of the most coveted expressions in Rolex's storied Datejust lineage, pairing the enduring appeal of a two-tone construction with the unmistakable glamour of a diamond-set bezel. First introduced in 1945, the Datejust holds the distinction of being the first self-winding wristwatch to display the date in a window on the dial, and it has remained a benchmark of horological elegance ever since. The Lady-Datejust 31 occupies a particularly appealing middle ground in the collection, sized at 31 mm to suit a wide range of wrists while retaining every hallmark of the full Datejust family.

The case of the 278343RBRCDJ is crafted from a combination of Rolex's proprietary Oystersteel — a 904L stainless steel alloy prized for its exceptional corrosion resistance and brilliant polish — and 18k yellow gold. This Rolesor construction, a Rolex signature since the 1930s, delivers the durability of steel alongside the warmth and prestige of solid gold, making the watch as practical as it is beautiful. The 31 mm Oyster case is water resistant to 100 metres (330 feet), underscoring the robust engineering beneath its refined exterior.

The champagne dial is a study in restrained luxury. Its warm golden hue complements the yellow gold elements throughout the watch and provides an ideal backdrop for the hour markers and hands, ensuring legibility without sacrificing elegance. Champagne dials have long been among the most sought-after options in the Lady-Datejust catalogue, prized by collectors for their versatility and timeless character.

The domed bezel set with diamonds adds a layer of brilliance that elevates the 278343RBRCDJ into genuine jewellery-watch territory. Each diamond is individually selected and set to Rolex's exacting standards, catching and refracting light with every movement of the wrist. The Jubilee bracelet — a five-piece link design with a heritage stretching back to 1945 — completes the aesthetic with a supple, flowing drape and a refined look that is unmistakably Rolex.

Powering the watch is an automatic movement, keeping the Lady-Datejust 31 accurate and self-winding through the natural motion of the wearer's wrist. Rolex's automatic movements are renowned across the industry for their precision, reliability, and longevity, making this watch an heirloom-grade investment as much as a daily companion.

At Bizak and Co., we are passionate about connecting discerning collectors and first-time luxury watch buyers with exceptional timepieces. The Rolex Lady-Datejust 31 ref. 278343RBRCDJ represents a rare opportunity to own a two-tone diamond-bezel Datejust that transcends trends and holds its desirability over generations. Browse our inventory at bizakandco.com or reach out directly — our team is ready to answer your questions, provide additional photos, and guide you through the purchase process with confidence. Please note that Bizak and Co. is not an authorized Rolex dealer.