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

The Rolex Datejust is one of the most storied timepieces in watchmaking history, and the Datejust 31 ref. 278384RBRGSJ represents the line at its most refined. Introduced in the mid-twentieth century, the Datejust was the first self-winding wristwatch to display the date in a window on the dial—a milestone that forever changed the industry. Today the 31mm case size occupies a distinguished middle ground, larger than a traditional ladies' watch yet perfectly proportioned for a wide range of wrists, making it a favorite among collectors and everyday wearers alike.

The 278384RBRGSJ is built from a combination of Oystersteel—Rolex's proprietary 904L stainless steel renowned for its exceptional corrosion resistance and mirror-polish potential—and 18k white gold, which appears on the bezel setting and selected case elements. This two-tone construction gives the watch a luxurious character without the full weight or price of an all-precious-metal case. The pairing of cool-toned white gold with brushed and polished steel creates a visual harmony that reads as both sporty and dressy depending on context.

The dark grey index dial is one of the most compelling aspects of this reference. Grey dials have surged in collector popularity for their versatility—sophisticated enough for formal occasions, understated enough for daily wear—and the applied hour markers catch light beautifully against the cool ground. The diamond-set bezel elevates the piece into genuine jewelry territory, with individually set brilliant-cut diamonds encircling the entire flange and delivering maximum brilliance from every angle.

Powering the 278384RBRGSJ is a Rolex automatic movement, the brand's self-winding manufacture caliber housed within the Oyster case. Rolex automatic movements are celebrated for their precision, reliability, and decades of iterative refinement. The watch also offers 100 meters (330 feet) of water resistance, a testament to the robust Oyster case construction that keeps the movement protected in everyday conditions from rain to recreational swimming.

The Jubilee bracelet completing this reference was designed by Rolex specifically for the Datejust and remains one of the brand's most elegant link constructions. Its five-piece link design lies fluidly on the wrist, combining a dressy feel with the comfort engineered for all-day wear. On the 278384RBRGSJ, the Jubilee in Oystersteel and white gold echoes the case materials and ties the entire aesthetic together cohesively.

Bizak & Co. specializes in sourcing and presenting exceptional pre-owned and new luxury timepieces, and the Rolex Datejust 31 ref. 278384RBRGSJ is a standout example of what the market values most—a desirable reference with diamonds, a compelling dial color, and Rolex's peerless build quality. Whether you are buying your first Rolex or adding a mid-size diamond Datejust to an established collection, our team is ready to assist. Browse our inventory at bizakandco.com or contact us directly to discuss this reference and secure your purchase with confidence.