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Rolex - 178240-0034 Datejust 31 Stainless Steel Domed / Oyster / Black Roman

Ref. 178240-0034

Rolex Rolex - 178240-0034 Datejust 31 Stainless Steel Domed / Oyster / Black Roman
Rolex Rolex - 178240-0034 Datejust 31 Stainless Steel Domed / Oyster / Black Roman
Rolex Rolex - 178240-0034 Datejust 31 Stainless Steel Domed / Oyster / Black Roman
Rolex Rolex - 178240-0034 Datejust 31 Stainless Steel Domed / Oyster / Black Roman

Case

MaterialStainless Steel
Diameter31 mm
CrystalSapphire
WR100 m

Dial

ColorBlack
IndexesRoman Numerals Hands: Stick

Movement

Caliber2235
Typeautomatic
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About This Watch

The Rolex Datejust 31, in its 178240-0034 iteration, embodies the quiet authority of a timepiece that has defined elegance for generations. With a 31-millimeter stainless steel case, its domed profile and Oyster construction evoke the enduring silhouette of the Datejust collection, first introduced in 1945 as a symbol of refined precision. The black dial, adorned with crisp Roman numerals and slender stick hands, offers a timeless contrast to the polished stainless steel, balancing sophistication with approachable luxury. The sapphire crystal, paired with a closed case back, ensures durability without compromising the watch’s discreet, understated presence. At its heart lies the Caliber 2235, an automatic movement distinguished by its enhanced date mechanism and a 70-hour power reserve, reflecting Rolex’s relentless pursuit of mechanical excellence. This reference, while faithful to the Datejust’s heritage, subtly modernizes its proportions for a contemporary wearer, retaining the collection’s hallmark balance of heritage and innovation. The 16-millimeter lug width and 100-meter water resistance further underscore its versatility, making it equally at home in formal settings or casual environments. This watch speaks to those who value legacy without ostentation—individuals who seek a companion piece as enduring as their own discernment. It is not a statement, but a silent testament to the quiet confidence of someone who understands that true luxury lies in precision, craftsmanship, and the unspoken language of time.

The 178240 family

178240-0034 is one of 24 variants sharing the 178240 base reference — same watch underneath, different dial, bezel, or bracelet execution. Browse the others:

+ 15 more variants in this family.

Inside: Caliber 2235

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This model is equipped with calibre 2235, a self-winding mechanical movement entirely developed and manufactured by Rolex. Like all Rolex Perpetual movements, the 2235 is a certified Swiss chronometer, a designation reserved for high-precision watches that have successfully passed the Swiss Official Chronometer Testing Institute (COSC) tests. Its architecture, in common with all Oyster watch movements, makes it singularly reliable

732 other watches in the library run the Rolex 2235.

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