Datejust 31 Stainless Steel Diamond / Oyster / MOP - Roman

About This Watch

The Rolex Datejust 31, in its 178384-0014 iteration, embodies the quiet authority of a design that has defined luxury watchmaking for over seven decades. The dial, a luminous expanse of white mother-of-pearl, captures light with a subtle, shifting iridescence that evokes the interplay of sea and sky. Encircling it, a diamond-set stainless steel bezel adds a touch of understated opulence, while Roman numerals in a crisp, legible form anchor the dial’s elegance. The stick hands, slender and precise, trace their lineage to the Datejust’s original 1945 debut—a model that first introduced the date complication to the wristwatch world. This reference, though modern in execution, remains rooted in the collection’s enduring ethos: a balance of refinement and durability, forged in the tradition of Swiss craftsmanship. At its core lies the Caliber 2235, a self-winding movement with a date display and a power reserve of approximately 55 hours. Its precision and reliability are hallmarks of Rolex’s engineering, seamlessly integrated into a case that is both robust and refined. The 31mm diameter, paired with a 16mm lug width, ensures a presence that is neither imposing nor diminutive, ideal for those who value proportion as much as performance. This watch is for the discerning individual who seeks a companion for moments of quiet significance—a boardroom negotiation, a gala evening, or the quiet confidence of a well-tailored suit. It is not a statement, but a legacy in the making.

In Context

At 31 mm it is small by current standards, in the range most wristwatches occupied before cases began growing through the 1990s. The case back is closed, so the movement stays out of sight, and the sapphire crystal will resist everything short of deliberate abuse. 100 m is genuine swimming resistance — more than the shape of this watch suggests it would need.

The movement winds itself from the motion of your wrist. 48 hours of reserve is enough to set it down on Friday evening and find it still running on Monday. At 28,800 vph the seconds hand advances 8 times a second.

178384-0014 is one of 52 executions of the 178384 base reference. Underneath they are the same watch; what separates this one is a white dial.

Rolex

Silver · White Gold, Stainless Steel

178384-0001 · 31 mm

Rolex

Silver · White Gold, Stainless Steel

178384-0003 · 31 mm

Rolex

White

178384-0004 · 31 mm

Rolex

Black

178384-0005 · 31 mm

Rolex

White · White Gold, Stainless Steel

178384-0006 · 31 mm

Rolex

Grey · White Gold, Stainless Steel

178384-0007 · 31 mm

Rolex

Pink · White Gold, Stainless Steel

178384-0009 · 31 mm

Rolex

Grey · White Gold, Stainless Steel

178384-0010 · 31 mm

+ 43 more variants in this family.

The 2235 is the small Rolex automatic of the six-digit generation, a 20 mm movement with a date. It carried the Datejust 31 and the 26 mm Lady-Datejust from around 2000 until the 2236 replaced it. It powers 733 watches in this library. It has 31 jewels, a 48-hour reserve and a beat of 28,800 vph, and every one is a COSC chronometer. It is the same architecture as the [2236](/calibers/rolex-2236) that followed, without the silicon Syloxi hairspring and with seven hours less reserve; the [2236 piece](/blog/the-rolex-2236-the-most-common-movement-in-this-library) explains what changed. The library finds it almost entirely in the [Datejust 31](/brands/rolex/datejust-31): 682 references, the 1782xx generation, whose 45 base references and hundreds of dial variants make that collection the largest here. The 26 mm [Lady-Datejust](/brands/rolex/lady-datejust) of the 1791xx generation accounts for 29, the [Pearlmaster](/brands/rolex/pearlmaster) 29 mm and 34 mm for 19, and the 35 mm Yacht-Master for 3. A six-digit Datejust 31 reference is a 2235; the seven-digit one is a 2236, as the [reference-number guide](/blog/how-to-read-a-watch-reference-number) explains. The 2231 was its no-date sibling in the Oyster Perpetual, and the [3135](/calibers/rolex-3135) its counterpart in the 36 mm cases.

732 other watches in the library run the Rolex 2235.

Rolex

Datejust 31 Yellow Gold Diamond / Oyster / Black MOP

178158-0056 · 31 mm

Rolex

Datejust 31 Stainless Steel Diamond / Oyster / Pink MOP

178384-0061 · 31 mm

Rolex

Datejust 31 Rolesor Everose Domed / Jubilee / Black MOP

178241-0043 · 31 mm

Rolex

Datejust 31 Yellow Gold Domed / Oyster / Champagne Roman

178248-0079 · 31 mm