Rolex Datejust 31 31 mm 278240WRJ Steel White

The Rolex Datejust is widely regarded as the archetype of the classic dress watch, and the 31 mm case size occupies a versatile middle ground that suits a broad range of wrists. First introduced in 1945 as the first self-winding wristwatch to display the date in a magnified window on the dial, the Datejust has remained in continuous production for eight decades—a testament to a design so balanced it has never needed reinvention. Reference 278240WRJ represents the current-generation Datejust 31, refined to meet modern standards of finishing and movement performance while honoring every proportion that made its predecessors iconic.

The 31 mm stainless steel case is polished and brushed to Rolex's exacting standards, presenting the characteristic alternating surfaces that give the watch depth under any light. The stainless steel domed bezel—sometimes called the smooth or plain bezel—keeps the aesthetic understated, directing all attention to the dial rather than competing with it. This is the choice for collectors and buyers who prefer quiet luxury over overt ornamentation, and it pairs seamlessly with both casual and formal attire.

At the heart of reference 278240WRJ is the white Roman numeral dial, one of the most sought-after configurations in the Datejust 31 lineup. White dials carry a sense of freshness and clarity that ages exceptionally well, and the applied Roman numerals add a layer of traditional watchmaking formality. The combination reads legibly at a glance while elevating the overall character of the piece well beyond simple functionality.

The Jubilee bracelet—a five-link design patented by Rolex in 1945 alongside the original Datejust—completes the watch with a supple, flowing drape on the wrist. Its finely finished center links and polished outer links mirror the case finishing philosophy, creating a cohesive aesthetic from lug to clasp. The Jubilee is beloved for its comfort on the wrist across long wearing periods, making the 278240WRJ an excellent choice for daily use. The watch is also rated to 100 meters (330 feet) of water resistance, adding genuine practicality to its refined appearance.

Buying a pre-owned or unworn Rolex Datejust 31 in reference 278240WRJ through Bizak & Co. gives you access to knowledgeable guidance and competitive pricing outside the authorized dealer channel. Bizak & Co. is an independent dealer—not an authorized Rolex retailer—specializing in sourcing desirable references for discerning buyers. Browse our current inventory or reach out directly to our team to confirm availability, discuss condition details, or arrange a purchase for this classic white Roman dial Datejust 31.