Rolex Datejust 31 31 mm 278384RBRGNSJ Steel/White Gold/Diamonds Green

The Rolex Datejust 31 reference 278384RBRGNSJ is a masterclass in refined watchmaking, combining the enduring architecture of one of horology's most iconic lines with a palette of materials and colors that feel both timeless and thoroughly contemporary. Measuring 31mm in diameter, this mid-size configuration occupies a sweet spot that suits a broad range of wrists while retaining the bold, confident presence that has defined the Datejust since its debut in 1945 as the world's first self-winding wristwatch to display the date in a window on the dial.

The case construction pairs the brand's proprietary Oystersteel — a corrosion-resistant steel alloy used exclusively by Rolex — with polished 18k white gold accents, creating the signature two-tone aesthetic that generations of collectors have coveted. The result is a case that catches the light from every angle, with the cool silver tones of white gold complementing the steel in a far more understated and sophisticated way than yellow gold ever could, making reference 278384RBRGNSJ an exceptionally versatile daily companion.

The mint green dial is the centrepiece of this reference and the detail that elevates it from handsome to genuinely striking. Rolex dials at this tier are manufactured entirely in-house, and the soft, luminous green sunray finish of the 278384RBRGNSJ catches available light and shifts in intensity as the wrist moves. Index hour markers set against that cool green ground create a crisp, legible read at a glance, while the iconic cyclops lens magnifying the date window at 3 o'clock adds both utility and a touch of classic Datejust identity.

The bezel on reference 278384RBRGNSJ is set with brilliant-cut diamonds, a detail that transforms the functional flange of the case into a continuous circuit of sparkling light. Diamond bezels on the Datejust are meticulously hand-set by Rolex craftspeople, and the precision of the setting work on this reference ensures that each stone sits flush and secure — suitable for a watch rated water-resistant to 100 metres. The five-link Jubilee bracelet, which Rolex introduced alongside the original Datejust in 1945, completes the aesthetic with its characteristically supple drape and polished centre links flanked by satin-finished outer links.

Powering the watch is Rolex's automatic movement, the self-winding engine that made the Datejust the landmark timepiece it remains today. Rolex manufacture movements are renowned for their precision, reliability, and chronometric performance, and the calibre fitted to this reference continues that tradition — offering the owner a maintenance-friendly, highly accurate movement that requires nothing beyond routine servicing over a lifetime of daily wear.

Bizak & Co. is proud to offer the Rolex Datejust 31 reference 278384RBRGNSJ to discerning buyers who demand both beauty and substance in a luxury timepiece. Whether you are seeking a statement watch for special occasions, a refined everyday wear piece, or a collectible addition to an established portfolio, this reference delivers on every count. Reach out to our team at bizakandco.com to request full condition details, provenance information, or to begin the purchase process — we are here to help you acquire the right watch with confidence.