Rolex Datejust 31 31 mm 278344RBRGNSO Steel/White Gold/Diamonds Green

The Rolex Datejust 31 is one of watchmaking's most enduring icons, and reference 278344RBRGNSO represents the model at its most glamorously appointed. Introduced as part of Rolex's mid-size Datejust family, the 31mm case size occupies a uniquely versatile position — substantial enough to make a statement on the wrist yet refined enough to wear effortlessly from morning through evening. This particular reference combines the brand's signature Oystersteel with 18k white gold, a pairing that delivers both the remarkable durability Rolex is known for and an unmistakable sense of luxury.

The defining visual element of the 278344RBRGNSO is its mint green dial set with diamond hour markers. The soft, luminous green hue has become one of the most covetable dial colors in the current Rolex lineup, evoking a sense of quiet confidence and individuality that stands apart from the more traditional white or silver dials. Diamond indices catch the light beautifully, adding depth and sparkle that complement rather than overwhelm the dial's fresh character.

Framing the dial is an 18k white gold domed bezel set entirely with diamonds, a signature feature of the RBR designation within Rolex's reference coding. The diamond bezel amplifies the watch's brilliance and firmly places this reference within Rolex's dressed-up Datejust tier. The polished Oyster bracelet, with its signature three-link design, closes the aesthetic loop and provides a secure, comfortable fit that remains as practical as it is beautiful.

Powering the watch is a Rolex automatic movement, delivering the precision and reliability that has made the Datejust a trusted companion for generations. The case carries a water resistance rating of 100 meters (330 feet), meaning everyday wear, including hand washing and brief water exposure, presents no concern whatsoever. This blend of mechanical integrity and genuine wearability is central to why the Datejust 31 has remained in production and in demand for decades.

On the wrist, the 31mm Oystersteel and white gold case strikes a balance between presence and discretion. It layers beautifully over tailored cuffs, sits elegantly with evening wear, and transitions just as naturally into a weekend setting. The mint green dial in particular generates conversation and admiration in equal measure, making this reference a genuine standout in any collection.

Bizak and Co. is proud to offer the Rolex Datejust 31 reference 278344RBRGNSO to discerning buyers who appreciate the rarity and desirability of this configuration. As an independent luxury watch dealer, Bizak and Co. provides personalized service and expert guidance throughout your acquisition. Contact us today to inquire about availability, pricing, or to schedule a closer look at this exceptional timepiece.