Rolex Datejust 31 31 mm 278274GNSO Steel/White Gold Green

The Rolex Datejust is widely regarded as the archetype of the classic dress watch, and the 31mm Datejust has long served as the definitive expression of that ideal for those who prefer a refined mid-size case. First introduced in 1945 as the world's first self-winding wristwatch to display the date in a window at 3 o'clock, the Datejust has remained in continuous production and evolved into dozens of references spanning case sizes, materials, and dial configurations. Reference 278274GNSO represents the current generation of this iconic lineage, bringing together modern manufacturing standards and Rolex's exacting quality control in a watch that is as wearable today as the Datejust was revolutionary decades ago.

At 31mm, this Datejust occupies the sweet spot in the collection for those who appreciate a case that sits elegantly on a range of wrist sizes without overwhelming the wrist. The case and bracelet are constructed in Oystersteel — Rolex's proprietary 904L stainless steel alloy chosen for its exceptional corrosion resistance and brilliant polish — and complemented by 18k white gold elements that elevate the watch into true luxury territory. The combination of these two materials gives reference 278274GNSO a two-tone sophistication that is both versatile and unmistakably Rolex.

The green dial is the defining visual statement of this particular reference. Rich and deeply saturated, the green dial catches light in a way that shifts from emerald brilliance to a more subdued, jewel-like depth depending on the ambient environment. Rolex dials are manufactured in-house to extraordinarily tight tolerances, and the color uniformity and finishing quality on a Datejust 31 dial reflect the same craft found across the entire Rolex portfolio. The white gold fluted bezel frames the dial with its characteristic ridged motif — a design detail that dates back to the earliest Datejust references and remains one of the most recognizable signatures in watchmaking.

Powering reference 278274GNSO is a Rolex automatic movement, wound by the wearer's natural wrist motion via the Perpetual rotor. Rolex movements are COSC-certified chronometers and are then further tested in-house to Rolex's own even more stringent standards, ensuring precision and long-term reliability. The Oyster case provides 100 meters (330 feet) of water resistance, underscoring the practical robustness that has always distinguished the Datejust from purely decorative dress watches.

On the wrist, the Datejust 31 278274GNSO wears with quiet authority. The Oyster bracelet — one of the most comfortable and durable integrated bracelets ever designed — ensures a secure, articulated fit that moves naturally with the hand. Whether paired with business attire, evening wear, or casual dress, this watch transitions effortlessly across contexts, which is precisely the hallmark of a great Datejust.

Bizak and Co. is pleased to offer this reference 278274GNSO as a certified authentic, brand-new Rolex Datejust 31. Buying from Bizak and Co. means working with knowledgeable specialists who source and authenticate each timepiece with care. Whether you are adding to a collection or purchasing your first Rolex, this green-dial Datejust 31 in Oystersteel and white gold is an exceptional choice — reach out to our team or buy online at bizakandco.com to make it yours.