Rolex Lady-Datejust 31 31 mm 278383RBROGRDVIJ Steel/Yellow Gold/Diamonds Green

The Rolex Lady-Datejust 31 is one of watchmaking's most enduring icons — a timepiece that has defined tasteful luxury on the wrist since the Datejust family's introduction in 1945, making it the first self-winding waterproof wristwatch to display the date in a window on the dial. Reference 278383RBR represents the modern expression of this legacy in a 31 mm case that suits a wide range of wrist sizes, combining the understated durability of Oystersteel with the warmth of 18k yellow gold in what Rolex calls a Rolesor configuration. This pairing of materials has been a signature of the Datejust line for decades and continues to attract buyers who appreciate both classic design and genuine horological pedigree.

The olive green dial of reference 278383RBR is a distinctive choice that elevates this piece beyond the standard Datejust palette. The Roman numeral hour markers lend a traditional, almost classical sensibility to the dial, creating a considered contrast with the contemporary two-tone Rolesor case. Olive green dials have surged in popularity among collectors and everyday wearers alike, and the Roman numeral configuration makes reference 278383RBR immediately recognizable as a refined, deliberate piece of wrist jewelry rather than a simple timekeeping instrument.

The bezel of the 278383RBR is set with brilliant-cut diamonds, adding considerable visual impact and catching the light from every angle. Diamond bezels on the Lady-Datejust are meticulously set by Rolex craftspeople, and the stones are selected for consistency of cut, color, and clarity. This detail transforms the watch into something that holds its own alongside high jewelry, while the Oyster case architecture beneath ensures it remains a serious, functional timepiece built to withstand the demands of daily wear.

Powering this reference is a Rolex automatic movement, the same self-winding technology that has made the Datejust family a byword for precision and reliability worldwide. The movement is housed in a 31 mm Oyster case rated to 100 meters (330 feet) of water resistance, meaning the watch is fully sealed against moisture and suitable for swimming and everyday exposure to water. The Jubilee bracelet — a five-piece link design first introduced alongside the original Datejust in 1945 — completes the watch with a supple, dressy feel on the wrist that pairs naturally with the dial and bezel combination.

Buying this Rolex Lady-Datejust 31 reference 278383RBR from Bizak and Co. means working with a knowledgeable, passionate team of luxury watch specialists committed to transparency and exceptional service. Whether you are adding to a collection, purchasing a milestone gift, or buying your first luxury watch, we invite you to contact us directly to discuss availability, condition details, and any questions you may have. Browse our curated inventory at bizakandco.com and discover why discerning buyers trust Bizak and Co. for pre-owned and new Rolex watches for sale online.