Rolex Datejust 31 31 mm 278274BLKRJ Steel/White Gold Black

The Rolex Datejust is widely regarded as the archetype of the classic dress watch, a lineage that dates back to 1945 when Rolex introduced the first self-winding wristwatch to display the date in a window on the dial—a genuine industry milestone. More than seven decades later, the Datejust remains the cornerstone of the Rolex catalog, balancing timeless proportions with continuous refinements in materials and finishing. The 31mm case size occupies a sweet spot in the collection, offering a refined, versatile fit that flatters a wide range of wrists without sacrificing the presence and legibility that define the model.

Reference 278274BLKRJ represents one of the most visually compelling executions of the Datejust 31. The case and bracelet are constructed from Oystersteel—Rolex's proprietary 904L stainless steel alloy chosen for its exceptional corrosion resistance and mirror-polished brilliance—while 18k white gold is introduced at the bezel and in key structural elements, creating a two-tone aesthetic that feels genuinely luxurious rather than merely decorative. The 18k white gold fluted bezel is one of Rolex's most storied design signatures, its precisely cut grooves catching light from every angle and lending the watch an unmistakable, sculpted elegance.

The black dial of the 278274BLKRJ provides a bold, high-contrast canvas that immediately draws the eye. Against the radiant white gold fluted bezel, the deep black finish creates a striking interplay of light and shadow, giving this reference a character that is at once understated and commanding. The dial's architecture follows Rolex's meticulously refined Datejust template, with hour markers and hands finished to exacting standards to ensure superb legibility in any lighting condition.

Powering the watch is an automatic movement, reflecting Rolex's longstanding commitment to mechanical self-winding technology refined through decades of in-house development. The watch carries a water resistance rating of 100 meters (330 feet), secured by the Oyster case construction—a screw-down crown and carefully sealed case back that protect the movement from dust and moisture in everyday situations. The Jubilee bracelet, introduced by Rolex alongside the original Datejust in 1945, completes the package with its five-piece link construction and supple drape that has made it a perennial favorite among Datejust enthusiasts.

For collectors and first-time luxury watch buyers alike, the Datejust 31 ref. 278274BLKRJ represents a sound and deeply satisfying acquisition. Its combination of precious-metal detailing, an iconic complication, and Rolex's benchmark build quality makes it a watch that retains relevance across generations. At Bizak & Co., this reference is offered in brand-new, certified-authentic condition, giving buyers complete confidence in provenance and quality. Browse our full Rolex selection at bizakandco.com or reach out directly—our team is ready to guide you through every detail of this exceptional timepiece.