Datejust 31 Stainless Steel Diamond / Oyster / Silver Computer

About This Watch

The Rolex Datejust 31 has long stood as a testament to the brand’s mastery of balancing tradition with modernity, and the 178384-0015 exemplifies this equilibrium with refined precision. Its case, a harmonious blend of white gold and stainless steel, reflects Rolex’s enduring commitment to craftsmanship, while the 31mm diameter ensures a presence that is both intimate and impactful. The dial, a luminous silver hue, is adorned with gem-set indexes that catch light with quiet sophistication, their placement echoing the Datejust’s mid-20th-century lineage—a collection first introduced in 1945 as a response to the demand for a watch that could seamlessly transition from boardroom to evening wear. The stick hands, crisp and legible, complement the dial’s elegance without drawing undue attention, a hallmark of Rolex’s restrained aesthetic. Beneath the sapphire crystal lies the Caliber 2235, a movement that marries Rolex’s heritage of mechanical excellence with contemporary innovation. Certified by the COSC for precision, it features a Chronergy escapement and a Parachrom balance spring, ensuring reliability and resilience against magnetism and shock. The closed caseback, paired with a water resistance rating of 100 meters, underscores the Datejust 31’s versatility—equally at home in the depths of the ocean as it is on the wrist of a discerning collector. This watch is for those who value understated refinement, where heritage meets horological precision. It suits the individual who seeks a timepiece that speaks volumes without shouting—a companion for moments that demand both elegance and quiet authority.

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.

178384-0015 is one of 52 executions of the 178384 base reference. Underneath they are the same watch; what separates this one is a silver dial and a white gold, stainless steel case.

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