{"product_id":"rolex-datejust-31-31-mm-278240gnso","title":"Rolex Datejust 31 31 mm 278240GNSO Steel Green","description":"\u003cp\u003eThe Rolex Datejust 31 ref. 278240GNSO is a brand-new 31mm stainless steel dress-sport watch featuring a striking green dial, stainless steel domed bezel, and the iconic Oyster bracelet. Powered by an automatic movement and rated to 100 meters (330 feet) of water resistance, this reference delivers both elegance and dependable everyday performance.\u003c\/p\u003e\n\u003cp\u003eReference 278240GNSO stands out for its vivid green dial — a color that has become one of the most sought-after in the modern Datejust lineup — paired with the clean, timeless silhouette of the 31mm Oyster case. Contact Bizak \u0026amp; Co. today to purchase this certified authentic Rolex Datejust 31 online or learn more about our white-glove buying experience.\u003c\/p\u003e\n\u003cp\u003eCompare it across \u003ca href=\"\/collections\/rolex-datejust-31\"\u003eevery Datejust 31 reference we carry\u003c\/a\u003e, or browse the full \u003ca href=\"\/collections\/rolex\"\u003eRolex collection\u003c\/a\u003e at Bizak \u0026amp; Co.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBuy this Datejust 31, trade in your current watch, or sell us yours.\u003c\/strong\u003e Contact Bizak \u0026amp; Co. to make an offer or request a fair-market valuation.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What makes the Rolex Datejust 31 ref. 278240GNSO special?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Reference 278240GNSO combines the timeless 31mm Datejust silhouette with a highly desirable green dial and stainless steel domed bezel — a pairing that feels both contemporary and classic. The green dial in particular has become one of the most sought-after dial colors in the modern Rolex lineup, giving this reference strong appeal among collectors and enthusiasts alike.\"}},{\"@type\":\"Question\",\"name\":\"What movement powers the Rolex Datejust 31 278240GNSO?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The Datejust 31 ref. 278240GNSO is equipped with an automatic movement, meaning it winds itself through the natural motion of the wearer's wrist. Rolex automatic movements are manufactured in-house and are celebrated for their precision, durability, and long-term reliability.\"}},{\"@type\":\"Question\",\"name\":\"What is the case size of the Rolex Datejust 31 278240GNSO?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"This reference features a 31mm Oyster case in stainless steel, making it a versatile mid-size option that suits a wide range of wrist sizes. The 31mm diameter is one of the most balanced sizes in the Datejust collection, sitting comfortably between the ladies' 28mm and the larger 36mm and 41mm variants.\"}},{\"@type\":\"Question\",\"name\":\"Is the Rolex Datejust 31 278240GNSO suitable for everyday wear?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes — the 278240GNSO is built for daily wear. The Oystersteel case and Oyster bracelet are exceptionally resistant to scratching and corrosion, and the watch carries a 100-meter (330-foot) water resistance rating secured by a screw-down Triplock crown. This makes it a practical companion for an active lifestyle without sacrificing any of its elegance.\"}},{\"@type\":\"Question\",\"name\":\"What are the dial and bezel details on the 278240GNSO?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The dial is green — a vivid, richly colored finish that has become synonymous with modern Rolex desirability. The bezel is a stainless steel domed bezel, a design that echoes the earliest Datejust references and provides a clean, unadorned frame that lets the green dial take center stage.\"}},{\"@type\":\"Question\",\"name\":\"How can I buy the Rolex Datejust 31 278240GNSO from Bizak \u0026 Co.?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"You can purchase this certified authentic, brand-new Rolex Datejust 31 ref. 278240GNSO directly through bizakandco.com or by contacting our team for a personalized consultation. Bizak \u0026 Co. is not an authorized Rolex dealer but specializes in verified authentic Rolex timepieces and provides a transparent, secure buying experience with expert support at every step.\"}}]}\u003c\/script\u003e","brand":"Rolex","offers":[{"title":"Default Title","offer_id":48860240445675,"sku":"278240GNSO","price":8369.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0758\/8688\/7147\/files\/278240GNSO_f04c66ef-3606-482c-9401-42cbc9a48811.jpg?v=1781360316","url":"https:\/\/bizakandco.com\/products\/rolex-datejust-31-31-mm-278240gnso","provider":"Bizak \u0026 Co.","version":"1.0","type":"link"}