Datejust 31 Stainless Steel Domed Diamond / Oyster / Rhodium - Roman

About This Watch

The Rolex Datejust 31, in its 178344-0011 iteration, stands as a refined synthesis of enduring craftsmanship and contemporary elegance, embodying the collection’s legacy of balancing tradition with innovation. The dial’s deep grey sunburst finish, a hallmark of Rolex’s mastery over surface treatments, is framed by a domed diamond bezel set into a case that harmonizes stainless steel with white gold—a pairing that amplifies both the watch’s presence and its subtlety. Roman numerals, rendered in a crisp, legible form, anchor the dial’s symmetry, while stick hands trace their path with precision, a nod to the Datejust’s origins as a timepiece designed for clarity and sophistication. The Oyster case, sealed against the elements, ensures durability without compromising the watch’s svelte 31mm profile, a size that speaks to modern sensibilities while honoring the collection’s mid-20th-century roots. At its core, the watch houses the Caliber 2235, a self-winding movement celebrated for its reliability and precision, featuring a Parachrom balance spring that resists magnetic interference and a 72-hour power reserve. The closed case back, a deliberate choice over a display back, underscores the Datejust’s focus on function over spectacle, a philosophy that has defined the collection since its 1945 debut. This watch is for those who seek a timepiece that transcends trends—a symbol of quiet assurance and heritage. It suits the discerning individual who values understated luxury, whether in the boardroom, at a gala, or as a testament to legacy worn on the wrist.

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.

178344-0011 is one of 51 executions of the 178344 base reference. Underneath they are the same watch; what separates this one is a grey sunburst dial and a white gold, stainless steel case.

Rolex

Brown · White Gold, Stainless Steel

178344-0001 · 31 mm

Rolex

Purple · White Gold, Stainless Steel

178344-0002 · 31 mm

Rolex

Grey · White Gold, Stainless Steel

178344-0003 · 31 mm

Rolex

White

178344-0004 · 31 mm

Rolex

White · White Gold, Stainless Steel

178344-0005 · 31 mm

Rolex

White

178344-0006 · 31 mm

Rolex

White

178344-0007 · 31 mm

Rolex

Black

178344-0008 · 31 mm

+ 42 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