Rolex Datejust 31 31 mm 278344RBRBLURO Steel/White Gold/Diamonds Blue Rolex Datejust 31 31 mm 278344RBRBLURO Steel/White…

The Rolex Datejust 31 reference 278344RBRBLURO is a masterclass in refined Swiss watchmaking, presenting the enduring Datejust silhouette in a 31mm case that blends Oystersteel with 18k white gold and a dazzling diamond-set bezel. Since its introduction in 1945, the Datejust has held the distinction of being the first self-winding wristwatch to display the date in a window on the dial — a groundbreaking achievement that established Rolex as a leader in horological innovation. The 31mm mid-size case sits beautifully between the Datejust 28 and the full 36mm, making it one of the most versatile sizing options in the collection.

The case of the 278344RBRBLURO is constructed from Rolex's proprietary Oystersteel — a 904L stainless steel alloy known for its exceptional corrosion resistance and brilliant polish — paired with 18k white gold elements on the bezel and crown. The Oyster case architecture is hermetically sealed, contributing to the watch's 100-metre (330-foot) water resistance. Every surface transitions seamlessly between brushed and polished finishing, reflecting Rolex's meticulous attention to detail.

At the heart of this reference's visual appeal is the bright blue Roman dial, which pairs the legibility of bold Roman numeral hour markers with the depth and drama of a vivid blue sunray finish. Blue dials have become a hallmark of the modern Datejust lineup, evoking both classic elegance and contemporary flair. The white gold domed diamond-set bezel frames the dial with a continuous ring of brilliant-cut stones, adding a layer of brilliance that catches the light from every angle.

Powering the 278344RBRBLURO is Rolex's automatic movement, housed within the Oyster case for outstanding protection against dust, moisture, and pressure. Rolex automatic calibers are renowned for their precision, reliability, and Superlative Chronometer certification, ensuring the watch performs to the highest accuracy standards straight from the factory and throughout its service life. The movement is self-winding via Rolex's Perpetual rotor system, meaning everyday wear keeps it running without manual intervention.

On the wrist, the 31mm Datejust 278344RBRBLURO offers exceptional presence for a mid-size watch. The Oyster bracelet — one of the world's most recognized watch bracelets — provides a secure, comfortable fit with its three-piece link construction and Oysterclasp. Whether worn as a daily companion or reserved for special occasions, the combination of diamond bezel, blue Roman dial, and white gold detailing ensures this Rolex commands attention in any setting.

At Bizak & Co., we specialize in sourcing and presenting pre-owned and grey-market luxury timepieces with transparency and expertise. The Rolex Datejust 31 reference 278344RBRBLURO represents extraordinary value for collectors and first-time buyers alike who seek a genuine Rolex with distinctive style. Browse our inventory at bizakandco.com or reach out to our team directly — we are here to help you acquire this remarkable timepiece with confidence.