Rolex Datejust 31 278344RBR

The Rolex Datejust 31 reference 278344RBR is a 31 mm midsize dress watch built on an Oystersteel and white gold Rolesor case set with a diamond-studded bezel, representing one of the most sought-after configurations in the modern Datejust 31 lineup. This reference is offered across a wide spectrum of dial colors — including pink, grey, black, white, green, and silver — allowing collectors to buy a Datejust 31 278344RBR that precisely matches their personal aesthetic. The combination of Rolesor construction, factory diamond bezel, and the iconic date display at three o'clock makes the 278344RBR a perennial favorite among buyers searching for luxury diamond Rolex watches for sale. Bizak and Co. carries authenticated, pre-owned and new examples of this reference, ready to ship.

About the Rolex Datejust 31 278344RBR

The Datejust is one of Rolex's most storied collections, tracing its roots to 1945 as the first self-winding wristwatch to display the date in a window on the dial, and the 31 mm case size has long served as the refined midsize expression of that legacy. Reference 278344RBR sits within the current-generation Datejust 31 family introduced with Rolex's updated Rolesor philosophy, pairing Oystersteel with 18k white gold on the bezel setting and crown. The defining feature of this reference is the factory-set diamond bezel, which replaces the classic fluted or smooth bezel with individually set brilliant-cut diamonds for a distinctly glamorous result. Across suffix variants, the dial material and color change while the steel and white gold Rolesor case construction remains consistent, making dial choice the primary differentiator for buyers in this reference family.

What to Look For

When shopping for a Datejust 31 278344RBR, the suffix letters after the base reference number indicate the specific dial configuration — for example, variants designated with BKRO or BKRJ point to black dials while GNSO denotes a green dial — so confirming the exact suffix ensures you receive the precise dial color and finish you want. Value within this reference is influenced by dial rarity, overall condition of the diamond bezel, box and papers presence, and whether the example is unworn or lightly worn, with less common dial colors such as green and pink typically commanding stronger collector interest.

Frequently Asked Questions

What is the case size and material of the Rolex Datejust 31 278344RBR?

The 278344RBR features a 31 mm Oyster case crafted in Rolesor, Rolex's proprietary combination of Oystersteel and 18k white gold. The white gold is used specifically on the diamond-set bezel and the winding crown, giving the watch its signature two-tone luxury appearance.

How do the different 278344RBR suffix variants differ from one another?

All variants share the same 31 mm Rolesor case and factory diamond bezel, but each suffix denotes a different dial color or material — options in this collection include pink, grey, black, white, green, and silver dials. Buyers should confirm the full reference number including suffix to ensure they are purchasing the exact dial configuration they intend.

Are the Rolex Datejust 31 278344RBR watches at Bizak and Co. authenticated?

Yes, every Datejust 31 278344RBR listed at Bizak and Co. is authenticated prior to sale and ships promptly from our inventory. We source these watches carefully to provide buyers with confidence in both the diamond bezel integrity and overall condition of each piece.

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Buy, trade, or sell. Contact Bizak & Co. for pricing and availability on any reference in this collection.

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Authentic Rolex Watches For Men and Women

Rolex watches are globally celebrated for their precision engineering, iconic design, and exceptional durability. As one of the most prestigious Swiss watch brands, Rolex sets the benchmark for luxury timepieces worn by discerning men and women around the world.

At Bizak, we present a carefully curated selection of authentic Rolex watches for men and women, including iconic models such as the Rolex Daytona and Rolex Datejust, available in stainless steel, gold, and two-tone configurations. Every Rolex watch is personally sourced and thoroughly vetted to ensure authenticity, condition, and long-term value.

Whether you are purchasing your first Rolex or adding a rare reference to your collection, Bizak offers a trusted destination to buy luxury Rolex watches online — backed by expertise, transparency, and a commitment to excellence.

Our Iconic Rolex Models

Browse a wide selection of legendary Rolex watches, including:

  • Rolex Submariner – An iconic luxury dive watch known for its exceptional water resistance, robust construction, and timeless design. Ideal for professionals, collectors, and everyday wear.
  • Rolex Datejust – A timeless classic that blends refined elegance with everyday versatility. The Datejust is one of the most recognizable and enduring Rolex models ever created.
  • Rolex Daytona – A high-performance chronograph inspired by motorsport, prized for its precision, racing heritage, and strong collector demand.
  • Rolex Day-Date – Known as the prestigious “President” watch, the Day-Date features both day and date displays and is crafted exclusively in precious metals.

Why Buy Rolex Watches from Bizak & Co.?
  • 100% Authentic Rolex Watches
  • Swiss-Made Precision & Certified Chronometers
  • Iconic Designs with Lasting Value
  • Trusted Luxury Watch Retailer

Rolex watches are known not only for their beauty but also for their long-term reliability and strong resale value, making them a preferred choice for collectors and first-time buyers alike.

Frequently Asked Questions

Yes. Every Rolex watch sold by Bizak & Co. is 100% authentic and carefully sourced from trusted partners. Each piece is inspected for originality and condition.
Due to limited production and high global demand, certain Rolex models trade above retail value on the secondary market, particularly iconic references like the Daytona and Submariner.
Yes. Bizak & Co. offers services for selling or trading luxury watches. Contact our team for a personalized evaluation.
Rolex stands out for its heritage, durability, iconic design, and strong resale value. Unlike some luxury brands, it’s built for everyday use and long-term reliability.
The Oyster case is Rolex’s signature waterproof design, introduced in 1926. It protects the movement from water, dust, and pressure, ensuring long-lasting durability.
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