Rolex Lady-Datejust 31 mm 278383RBR Steel/Yellow Gold/Diamonds White Rolex Lady-Datejust 31 mm 278383RBR Steel/Yellow…

The Rolex Lady-Datejust is one of the most enduring icons in watchmaking history, first introduced in 1957 as the first self-winding waterproof watch sized expressly for women. Over the decades, the reference has evolved through countless dial treatments, material combinations, and bezel options while preserving the hallmark Datejust identity: a fluted or jeweled bezel, date window at three o'clock, and the unmistakable Cyclops lens. The 31mm case size introduced with the Lady-Datejust 31 family occupies an ideal middle ground—larger and more contemporary than the classic 26mm or 28mm expressions yet still gracefully proportioned on a broad range of wrists.

Reference 278383RBR represents one of the most coveted configurations in the current Lady-Datejust 31 lineup, combining Oystersteel with 18k yellow gold in Rolex's signature two-tone Rolesor execution. The diamond-set bezel—designated by the 'RBR' suffix in the reference number—encircles the case with a continuous scintillating ring of brilliant-cut diamonds, transforming what is already a polished sports watch into a piece of jewelry-grade splendor. The white Roman dial provides a clean, legible canvas, with the Roman numeral hour markers imparting a classical typographic elegance that pairs beautifully with the warm gold tones of the case and bracelet center links.

Powering the 278383RBR is an automatic movement housed within Rolex's iconic Oyster case, which provides water resistance to 100 meters (330 feet). The Oyster case construction—the world's first waterproof wristwatch case, patented by Rolex in 1926—uses a screw-down crown and hermetically sealed case back to protect the movement from dust, pressure, and moisture. This heritage of robustness means the Lady-Datejust is not merely an ornamental piece; it is a genuine instrument built to accompany its wearer through the full spectrum of daily life.

On the wrist, the 31mm diameter and polished-and-brushed Oyster bracelet deliver a presence that reads as luxurious without being overstated. The alternating yellow gold center links and Oystersteel outer links of the Rolesor Oyster bracelet echo the two-tone theme of the case, while the Oysterclasp ensures a secure, comfortable fit throughout the day. Whether paired with formal eveningwear or elevated casual attire, the 278383RBR occupies a rare position as a watch that performs equally well as a statement accessory and a dependable everyday timepiece.

Buying the Rolex Lady-Datejust 31 reference 278383RBR from Bizak & Co. means working with a knowledgeable dealer dedicated to sourcing exceptional timepieces. Bizak & Co. is not an authorized Rolex dealer, but our team is committed to transparency, accuracy, and client satisfaction on every transaction. We encourage prospective buyers to reach out directly through bizakandco.com to confirm current availability, discuss the watch's condition details, and explore financing or trade-in options—because a piece this significant deserves a purchasing experience to match.