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Rolex - 278240-0017 Datejust 31 Stainless Steel / Oyster / Blue - Roman

Ref. 278240-0017

Rolex Rolex - 278240-0017 Datejust 31 Stainless Steel / Oyster / Blue - Roman
Rolex Rolex - 278240-0017 Datejust 31 Stainless Steel / Oyster / Blue - Roman
Rolex Rolex - 278240-0017 Datejust 31 Stainless Steel / Oyster / Blue - Roman

Case

MaterialStainless Steel
Diameter31 mm
CrystalSapphire
WR100 m

Dial

ColorBlue
FinishSunburst
IndexesRoman Numerals Hands: Stick

Movement

Caliber2236
Typeautomatic
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About This Watch

The 278240-0017 Datejust 31, introduced in 2024, represents a refined evolution of Rolex’s enduring Datejust collection, which has since 1945 epitomized the marriage of precision and elegance. Its 31mm stainless steel case, paired with a domed Oyster bezel, strikes a balanced proportion that feels both contemporary and timeless, while the deep blue sunburst dial commands quiet attention. The Roman numeral indexes and slender stick hands lend a sense of restraint, allowing the dial’s rich hue to dominate—a color choice that evokes the serenity of the sea without sacrificing the watch’s formal demeanor. Encased in a stainless steel Oyster case, the timepiece is protected by a sapphire crystal and sealed with a closed back, ensuring resilience against the elements without compromising its sleek silhouette. At its heart lies the Caliber 2236, a self-winding movement engineered for reliability and accuracy, featuring a Parachrom hairspring and a Chronergy escapement that enhance its performance in varying conditions. The Datejust 31’s water resistance to 100 meters underscores its practicality, though its design remains rooted in the aspirational. This watch is for the discerning individual who seeks a symbol of enduring sophistication—whether for a quiet evening over a glass of Bordeaux or a momentous occasion where presence speaks louder than words. Its understated brilliance lies not in ostentation, but in the confidence of a legacy that continues to define modern horology.

The 278240 family

278240-0017 is one of 18 variants sharing the 278240 base reference — same watch underneath, different dial, bezel, or bracelet execution. Browse the others:

+ 9 more variants in this family.

Inside: Caliber 2236

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This self-winding mechanical movement with date display is entirely manufactured by Rolex and inaugurates a new generation of movements. Its design and quality manufacture ensure peerless precision and reliability. Like all Rolex Perpetual movements, the 2236 is a certified Swiss chronometer, a designation reserved for high-precision watches that have successfully passed the Swiss Official Chronometer Testing Institute (COSC) tests. It was first introduced in 2014. It the first movement to be fitted with the Syloxi (silicon) hairspring.

906 other watches in the library run the Rolex 2236.

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