Rolex Datejust 31 31 mm 278344RBRSDO Steel/White Gold/Diamonds Silver

The Rolex Datejust is widely regarded as the definitive dress watch of the 20th and 21st centuries, having debuted in 1945 as the first self-winding wristwatch to display the date in a magnified aperture at 3 o'clock. Over eight decades, Rolex has refined every element of the design while preserving the instantly recognizable silhouette — a round Oyster case, cyclops lens, and fluted or gem-set bezel — that has made the Datejust a cultural landmark on the wrists of world leaders, artists, and discerning collectors.

The Datejust 31 occupies a unique position in the current lineup, offering a 31mm case that reads as distinctly refined without sacrificing presence. Reference 278344RBRSDO is built from Rolex's proprietary Oystersteel — a corrosion-resistant 904L alloy that polishes to an exceptional mirror finish — combined with 18k white gold for the bezel and crown, creating a two-tone aesthetic that feels simultaneously sporty and ceremonial. The Oyster bracelet, fitted with Rolex's folding Oysterclasp, extends that material harmony across the entire piece and sits securely and comfortably on the wrist.

The dial of reference 278344RBRSDO is silver and set with diamonds, delivering a luminous, high-jewelry quality that catches light from every angle. Complementing the dial, the 18k white gold domed bezel is itself pavé-set with diamonds, framing the face of the watch in a continuous arc of brilliance. Together, dial and bezel create a cohesive jewel-set aesthetic that elevates everyday timekeeping into something genuinely spectacular.

Powering the watch is a Rolex automatic movement, the result of the brand's vertically integrated manufacture philosophy in which movements are designed, produced, and certified entirely in-house. Rolex automatic movements are chronometer-certified by the COSC and subjected to additional proprietary testing, ensuring precision and reliability that match the watch's exterior refinement. The result is a timepiece that performs as impressively as it looks, day after day.

On the wrist, the 31mm Datejust 31 278344RBRSDO commands attention without ostentation — a balance that few watches at any price point achieve. The diamond bezel and diamond dial make it a natural choice for formal occasions, while the Oyster bracelet and Oystersteel construction mean it transitions effortlessly to everyday wear. At Bizak & Co., we specialize in helping collectors find exactly the right Rolex reference, and we invite you to reach out to our team to discuss availability, condition details, and how to purchase this reference securely through bizakandco.com.