Rolex Datejust 31 31 mm 278384RBRGSO Steel/White Gold/Diamonds Grey

The Rolex Datejust is one of the most enduring icons in watchmaking, introduced in 1945 as the first self-winding wristwatch to display the date in a magnified window on the dial. Over the decades it has grown into a family spanning multiple case sizes, materials, and dial configurations, each iteration refining the formula without abandoning the DNA that made the model a cultural touchstone. The 31mm format sits at the heart of that family, offering a versatile mid-size case that suits a wide range of wrist sizes and styling preferences while retaining every hallmark of the classic Datejust silhouette.

Reference 278384RBRGSO represents a particularly elevated expression of the Datejust 31. The case and bracelet are built from Rolex's proprietary Oystersteel, an alloy celebrated for its corrosion resistance and mirror-quality polish, blended with 18k white gold accents that elevate the overall aesthetic. The dark grey dial provides a sophisticated, moody backdrop that highlights the index hour markers, creating a refined contrast that reads clearly in any lighting condition. Grey dials have become increasingly sought after precisely because they occupy a compelling space between the formal character of a black dial and the brightness of a silver one.

The defining visual element of this reference is its diamond-set bezel, which encircles the dial with a continuous run of brilliant-cut diamonds. Rolex sets each stone by hand using a technique refined over generations, ensuring consistent brilliance and secure placement that withstands daily life. The result is a bezel that catches light from every angle, transforming the watch into something that functions simultaneously as a precision timepiece and a piece of fine jewellery. It is this dual identity that explains the enduring appeal of diamond-bezel Datejust references among collectors and first-time luxury buyers alike.

Power comes from a Rolex automatic movement, the hallmark of the Datejust line, ensuring the watch winds itself through the motion of the wearer's wrist and requires no manual winding during regular use. The watch is rated to 100 metres of water resistance, reflecting the integrity of the Oyster case construction with its screw-down crown and carefully engineered case back. The Oyster bracelet completes the package with its three-link architecture and folding Oysterlock clasp, delivering comfort and security in equal measure and matching the polished and brushed finishing of the case itself.

Buying the Rolex Datejust 31 reference 278384RBRGSO from Bizak & Co. means purchasing from a dealer whose focus is sourcing quality pre-owned and unworn luxury timepieces for discerning buyers across the United States. Our team is available to answer questions about this specific reference, discuss comparable options, and guide you through the purchase process with full transparency. Contact us today to confirm current availability or to buy this watch online through bizakandco.com. Please note that Bizak & Co. is not an authorized Rolex dealer; all trademarks remain the property of Rolex SA.