Rolex Datejust 36 36 mm 126231CJDO Steel/Rose Gold Chocolate

The Rolex Datejust is one of the most enduring watch designs in horological history, introduced in 1945 as the first self-winding wristwatch to display the date automatically through a window on the dial. Over eight decades the collection has evolved in material, size, and finishing while preserving the instantly recognizable proportions and the date function that gave it its name. The 36mm case diameter is the classic Datejust size—the format in which the model made its reputation—and remains one of the most versatile sizes in fine watchmaking, sitting elegantly on a broad range of wrist sizes for both men and women.

Reference 126231CJDO occupies a particularly attractive position within the current Datejust 36 lineup. The two-tone construction combines an Oystersteel case and Oyster bracelet with 18k Everose gold—Rolex's proprietary rose gold alloy formulated to resist fading over time—for the fluted bezel and select case elements. This interplay of cool steel and warm rose gold is a signature Rolex aesthetic that has proven timelessly popular among collectors and first-time luxury buyers alike.

The chocolate dial is the defining visual element of this reference. Rich and warm in tone, it pairs naturally with the Everose gold bezel and creates a depth of color that reads differently under various lighting conditions—burnished and earthy in natural light, luminous and complex under tungsten. Diamond hour markers add a layer of formal brilliance without overwhelming the dial's overall warmth, making this watch equally at home in a boardroom or at a weekend dinner.

Power comes from a Rolex automatic movement, the type of self-winding mechanical caliber that has been at the core of the Datejust since the collection's earliest years. The movement is housed within the iconic Oyster case, Rolex's patented waterproof construction sealed by a screwed-down crown and case back, providing water resistance to 100 meters (330 feet). This level of protection means the watch wears confidently in everyday conditions far beyond what most dress watches can claim.

The Oyster bracelet on this reference is a three-link design produced in the same Oystersteel and Everose gold two-tone configuration as the case, giving the watch a cohesive head-to-toe look. Paired with the Datejust's clean 36mm Oyster case, the result is a wrist presence that is neither understated nor loud—precisely the calculated elegance that has made the Datejust the world's most recognized luxury watch.

At Bizak and Co. we specialize in sourcing and presenting exceptional pre-owned and gray-market Rolex references for discerning buyers across the United States. Reference 126231CJDO in chocolate with diamonds is a sought-after configuration that combines investment-grade appeal with genuine daily wearability. Browse our full Rolex Datejust collection at bizakandco.com or contact our team directly to ask about availability, condition details, and secure purchase options. Please note that Bizak and Co. is not an authorized Rolex dealer.