Rolex Datejust 31 31 mm 278384RBRWMOPDO Steel/White Gold/Diamonds White Mother of Pearl

The Rolex Datejust is arguably the most recognisable watch in the world, having defined the concept of the classic dress watch with a date complication since its debut in 1945. Over eight decades its silhouette has remained instantly familiar — a round Oyster case, an elegant fluted or set bezel, the signature cyclops lens magnifying the date — while Rolex has continuously refined its materials, movements, and finishing standards. Reference 278384RBR belongs to the current generation of the Datejust 31, the mid-size variant that sits between the 28 mm and the full 36 mm and appeals to a wide range of wrists seeking presence without excess.

At 31 mm the case strikes an ideal balance for wearers who prefer a watch that reads as jewellery-forward yet is substantive enough to make a clear horological statement. The case construction combines Rolex's proprietary Oystersteel — a 904L stainless steel alloy prized for its exceptional corrosion resistance and mirror-polish potential — with 18k white gold on the bezel and crown, creating a cool-toned, seamlessly integrated two-material aesthetic. Every curve of the case is hand-finished to Rolex's exacting standards, alternating between brushed flanks and polished lugs.

The bezel of reference 278384RBR is set with a continuous ring of brilliant-cut diamonds, replacing the traditional fluted or smooth profiles with concentrated brilliance that catches light from every angle. Inside the Oyster crystal lies the white mother-of-pearl dial, a material harvested from the inner layer of mollusk shells whose iridescent, shifting surface means no two dials look identical in different lighting conditions. Diamond hour markers replace printed indices, ensuring that the gem-setting philosophy carries through from bezel to dial for a fully unified, jewellery-grade appearance.

Power comes from a Rolex automatic movement, the self-winding mechanical heart that Rolex has refined over generations to deliver chronometric precision. The movement winds through the Oyster case's screw-down crown, which together with the screw-down case back provides meaningful water resistance, making this dressed-up watch far more robust than its appearance might suggest. The Oyster bracelet in matching Oystersteel and white gold links completes the package: it is solid, weighty, and secured by Rolex's deployant clasp for all-day security and comfort.

For collectors and first-time Rolex buyers alike, the Datejust 31 in reference 278384RBR represents one of the brand's most enduring propositions — a watch that transitions effortlessly from a business meeting to a formal occasion, that accumulates desirability rather than depreciation, and that carries the full weight of Rolex's global reputation. The diamond bezel and mother-of-pearl dial make it a statement piece without sacrificing versatility. At Bizak & Co. we source watches to the highest standards of authenticity and quality. Reach out to our team at bizakandco.com to check current availability and to buy this reference online or in person.