Rolex Lady-Datejust 31 31 mm 278343RBRDGDO Steel/Yellow Gold/Diamonds Grey

The Rolex Lady-Datejust 31 is one of the most enduring and universally admired watches in the Rolex catalogue, tracing its lineage back to the original Datejust introduced in 1945 — the first self-winding waterproof wristwatch to feature an automatic date display. Over the decades the Lady-Datejust evolved into a standalone icon in its own right, offering the same horological pedigree and iconic date window at the three o'clock position in a refined 31mm diameter purpose-built for the modern woman who values both precision and beauty.

Reference 278343RBRDGDO represents a particularly compelling expression of the Lady-Datejust 31 family. The case and bracelet are rendered in a harmonious combination of Oystersteel — Rolex's proprietary 904L stainless steel prized for its exceptional corrosion resistance and lasting luster — and lustrous 18k yellow gold. This two-tone construction, often called Rolesor by Rolex enthusiasts, brings warmth and visual richness while retaining the durability and sportiness of steel, making it a versatile companion for virtually any occasion.

The grey dial of the 278343RBRDGDO is a study in quiet sophistication. Grey sits at a coveted middle ground between the formality of black and the brightness of silver, lending the watch a contemporary, gender-forward character that pairs beautifully with both casual and formal dress. The domed bezel set entirely with diamonds adds unmistakable glamour and brilliance, catching light from every angle and elevating this reference firmly into luxury jewelry-watch territory without sacrificing legibility or wearability.

Powering the watch is Rolex's proprietary automatic movement, a self-winding caliber that delivers the reliability and accuracy Rolex is world-famous for. The Oyster case — with its screw-down crown and caseback — provides water resistance to 100 meters (330 feet), meaning this watch is robust enough for everyday life, including swimming, while remaining every bit as appropriate on a formal occasion. The three-link Oyster bracelet, secured by Rolex's Oysterclasp, adds comfort and proportion perfectly matched to the 31mm case.

Buying from Bizak & Co. means working with a knowledgeable, passionate team dedicated to sourcing and presenting exceptional timepieces. Whether you are adding your first Rolex to your collection or seeking a specific reference like the Lady-Datejust 31 278343RBRDGDO to complement an existing lineup, Bizak & Co. offers personalized service, transparent descriptions, and the confidence that comes from dealing with specialists. Please note that Bizak & Co. is not an authorized Rolex dealer; all Rolex trademarks belong to Rolex SA. Reach out today to learn more, ask questions, or secure this stunning timepiece for your collection.