Rolex Lady-Datejust 31 31 mm 278383RBRCSO Steel/Yellow Gold/Diamonds Champagne

The Rolex Lady-Datejust is one of the most enduring icons in watchmaking history, representing the world's first self-winding waterproof wristwatch sized specifically for women when it debuted in 1957. Over the decades it has evolved in diameter, material, and decoration while retaining the same core values: precision, elegance, and inimitable Rolex quality. The 31mm format of the current generation hits a sweet spot between the original 26mm ladies' size and the full 36mm Datejust, making it a versatile choice for a wide range of wrists and aesthetics.

Reference 278383RBRCSO is one of the most visually arresting members of the Lady-Datejust 31 family. The case and Oyster bracelet are constructed in Rolex's proprietary Oystersteel — a 904L stainless steel alloy prized for its exceptional corrosion resistance and mirror-bright polish — complemented by 18k yellow gold on the bezel setting, crown, and bracelet centre links. This two-tone combination, sometimes called Rolesor by Rolex, has been a defining aesthetic of the Datejust line for generations.

The bezel on this reference is set with brilliant-cut diamonds, adding a layer of fine-jewellery brilliance that elevates the watch beyond sport-luxury territory into true dress-watch distinction. Against this constellation of stones, the champagne dial glows with a warm, honeyed depth that pairs naturally with the yellow gold accents throughout. Index hour markers complete the dial in a clean, legible layout that is characteristically Rolex.

Beneath the Oyster case, an automatic movement drives the watch with the reliability Rolex is globally celebrated for, while the Oyster case construction delivers 100 metres (330 feet) of water resistance — more than adequate for everyday wear, swimming, and the occasional splash. The screw-down Oyster crown and solid-link Oyster bracelet with its concealed Crownclasp are the same architecturally rigorous components found across Rolex's professional sports models, meaning glamour here is never achieved at the expense of durability.

For collectors and first-time Rolex buyers alike, the Lady-Datejust 31 in reference 278383RBRCSO represents an exceptional entry into two-tone Rolex ownership. It wears with equal authority on a casual weekend or a formal evening, and its diamond bezel ensures it holds both aesthetic and resale attention over time. At Bizak & Co. we source fine pre-owned and new luxury watches with full transparency, and our team is ready to answer every question you have about this reference — from provenance to pricing. Browse our collection at bizakandco.com or reach out directly to bring this stunning timepiece to your wrist.