Rolex Steel and White Gold Datejust 31 Watch - Domed Bezel - Black Roman Dial - Jubilee Bracelet - bkrj — Ref. 278240
Authenticity Guaranteed
We certify all our items as authentic, providing you with a guarantee of quality and craftsmanship.
The Rolex Steel and White Gold Datejust 31 Watch, reference 278240, represents timeless luxury for the discerning collector. This 31mm Oystersteel case offers the perfect proportions for those seeking a refined everyday timepiece. The combination of steel with white gold accents makes this reference particularly coveted, delivering elegance without excess while maintaining Rolex's legendary craftsmanship and durability standards.
The striking Black Roman dial showcases classical sophistication, with numerals that command attention against the dark surface. A domed bezel frames the dial with precision, adding depth and visual interest to the watch face. The Jubilee bracelet completes the design, featuring the iconic five-piece link pattern that has been synonymous with Rolex prestige for generations.
Powered by the Rolex caliber 2236 manufacture movement, this timepiece delivers approximately 55 hours of power reserve for reliable performance. The automatic self-winding mechanism ensures consistent accuracy, while the date function at 3 o'clock provides practical everyday utility alongside horological excellence.
Available now at Diamond Club Jewelry Miami — every timepiece is 100% authenticated and verified before sale.
| Reference | 278240 |
| Case | 31mm Oystersteel |
| Dial | Black Roman Dial |
| Caliber | 2236, manufacture Rolex |
| Power reserve | ~55 hours |
| Functions | Date |
| Bracelet / Strap | Jubilee bracelet |
| Water resistance | 100m / 330ft |
Best Deal Guarantee
At Diamond Club Miami, we ensure you receive the best value on luxury watches. Our commitment goes beyond just offering competitive prices. We prioritize genuine quality and exceptional craftsmanship, ensuring you acquire a truly fine timepiece. Additionally, enjoy complimentary domestic shipping as our standard service. With Diamond Club Miami, you always get the best deal.
Authenticity Guarantee
Each of our watches undergoes meticulous inspection by a master watchmaker, ensuring authenticity. If we enhance a pre-owned watch with a customized bezel, gem, or other adornment during restoration, we will fully disclose these modifications. Such enhancements are standard in the industry and often result in increased value. Your satisfaction and trust are our top priorities.

