Rolex Datejust 31mm Blue Roman Oyster 278240 2024 [Preowned]

Overview 

The Rolex Datejust 31 reference 278240 is a sophisticated mid-size expression of the world’s most iconic chronometer. Perfectly proportioned for those who find the 28mm too petite and the 36mm too commanding, the 31mm case strikes an ideal balance between jewelry-like elegance and modern presence. Crafted entirely from Oystersteel—Rolex’s proprietary high-performance alloy—this model represents the intersection of classical luxury and the rugged durability required for a daily companion.

The defining characteristic of this reference is its deep Blue dial, a color that has become a staple of refined taste within the Rolex catalog. The sunray finish creates a dynamic visual experience, allowing the dial to transition from a vibrant, bright blue to a moody navy depending on the angle of the light. Setting this model apart are the polished Roman numeral markers, which lend the watch an "old-world" prestige and a more formal aesthetic than standard index dials. Framed by a polished smooth bezel, the watch maintains a sleek, architectural silhouette that emphasizes the dial’s rich color and classical layout.

In this configuration, the watch is paired with the three-link Oyster bracelet, providing a sportier, more contemporary feel compared to the intricate Jubilee. The Oyster bracelet is celebrated for its structural integrity and secure fit, making it the perfect choice for those who value a clean, industrial look. It features the Oysterclasp and the Easylink 5mm comfort extension, a practical engineering feat that allows the wearer to increase the bracelet length instantaneously—a welcome feature for maintaining comfort throughout the day.

Beneath the surface, the 278240 is powered by the Manufacture Calibre 2236, a self-winding mechanical movement at the forefront of watchmaking technology. It features Rolex’s patented Syloxi hairspring in silicon, which provides exceptional resistance to magnetic fields and remains remarkably stable when subjected to shocks or temperature variations. With a 55-hour power reserve and Superlative Chronometer certification, this Datejust 31 is a high-precision instrument. Boasting 100 meters of water resistance, it is a dependable, stylish powerhouse designed to transition effortlessly from casual settings to the most formal occasions.

Specifications

Brand :	Rolex
Model Name :	Datejust 31mm
Reference :	278240
Material	Steel
Movement :	Rolex Calibre 2236, 55 hours Power Reserve, Automatic
Case Diameter :	31mm
Bracelet / Strap :	Steel
Features :	100m depth rating, Blue luminescence on dial

 

Condition

Preowned, Excellent Condition, Complete Original Set with Box and Papers dated August 2024.

Warranty

5 year original manufacturer warranty.

Further Insight from Our Specialist Team

Read our Full Review here : Rolex Oyster Perpetual vs Datejust : The Foundation vs The Icon

Watch our Video Review Here :