Rolex Datejust 31 31 mm 278384RBRWRO Steel/White Gold/Diamonds White

The Rolex Datejust is widely regarded as the archetype of the classic dress watch, and the 31mm family — sitting elegantly between the 28mm and the full 36mm — has long been a favorite for those who appreciate a refined, wearable case size with unmistakable Rolex presence. Introduced in 1945 as the world's first self-winding waterproof wristwatch to display the date, the Datejust remains the cornerstone of the Rolex collection nearly eight decades later.

Reference 278384RBRWRO represents the Datejust 31 at its most opulent. The case and bracelet are crafted from a combination of Rolex's proprietary Oystersteel — a 904L stainless steel alloy prized for its superior corrosion resistance and brilliant polish — and 18k white gold, which traces the lugs and Oyster bracelet links in cool, luminous precious metal. The result is a two-tone aesthetic that is simultaneously sporty and sophisticated.

The bezel of this reference is set with diamonds, framing the white dial in a continuous ring of brilliance. The dial itself carries Roman numerals, lending the watch a classical character that nods to the Datejust's decades of horological heritage. The combination of a diamond bezel, Roman hour markers, and white lacquer or similar white finish creates a dial composition that reads as unmistakably Rolex while feeling distinctly jewel-like in person.

Powering the 278384RBRWRO is Rolex's automatic movement, which delivers reliable self-winding performance and the date complication that defines every Datejust. The watch is rated to 100 meters (330 feet) of water resistance thanks to the Oyster case construction — a screw-down crown and caseback that render the watch hermetically sealed, making it genuinely capable of accompanying an active lifestyle without sacrificing its dressed-up character.

At 31mm the Datejust 31 occupies a sweet spot for a wide range of wrists. It wears comfortably and confidently without overpowering smaller wrists, yet the diamond bezel and white gold detailing ensure this watch commands attention in any setting. Whether worn daily or reserved for special occasions, the 278384RBRWRO is built to Rolex's exacting standards and designed to be appreciated for generations.

At Bizak & Co. we specialize in sourcing and presenting exceptional timepieces like this Rolex Datejust 31 ref. 278384RBRWRO. Our team is available to answer detailed questions, provide additional photographs, or walk you through the purchasing process. If you are looking to buy a diamond-bezel Datejust 31 online from a knowledgeable and trustworthy dealer, we invite you to reach out to Bizak & Co. at bizakandco.com — we would be delighted to help you acquire this extraordinary watch.