Datejust 31 Rolesor Yellow Domed / Jubilee / Olive Roman

About This Watch

The Rolex Datejust 31 178243-0079 stands apart within the Datejust lineage for its striking interplay of materials and its restrained yet deliberate aesthetic. The case, a harmonious union of yellow gold and stainless steel, embodies the brand’s signature Rolesor construction, a hallmark of Rolex’s engineering since the 1930s. At its heart lies a dial of deep, muted olive green, a hue that evokes both natural richness and timeless discretion. The Roman numerals, rendered in a crisp, understated finish, complement the stick hands, their simplicity amplifying the dial’s quiet sophistication. The domed sapphire crystal, a design element first introduced in the 1950s, adds a layer of classical elegance, while the Jubilee bracelet—characteristic of the Datejust collection since 1945—offers a balance of comfort and refinement. Powering this timepiece is the Caliber 2235, a self-winding movement with a 55-hour power reserve, its precision and reliability a testament to Rolex’s decades-long commitment to in-house innovation. The closed case back and 100-meter water resistance underscore the watch’s practicality without compromising its sartorial appeal. This reference, with its deliberate color palette and heritage-infused design, is tailored for those who seek a watch that transcends trends yet remains unmistakably Rolex. It is the kind of timepiece suited to moments of quiet distinction—whether in the boardroom, at a gala, or worn as a personal testament to legacy and understated excellence.

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.

178243-0079 is one of 31 executions of the 178243 base reference. Underneath they are the same watch; what separates this one is a green dial and a yellow gold, stainless steel case.

Rolex

White

178243-0001 · 31 mm

Rolex

Silver · Yellow Gold, Stainless Steel

178243-0002 · 31 mm

Rolex

Champagne · Yellow Gold, Stainless Steel

178243-0003 · 31 mm

Rolex

White · Yellow Gold, Stainless Steel

178243-0005 · 31 mm

Rolex

Champagne · Yellow Gold, Stainless Steel

178243-0008 · 31 mm

Rolex

Silver · Yellow Gold, Stainless Steel

178243-0016 · 31 mm

Rolex

Silver · Yellow Gold, Stainless Steel

178243-0022 · 31 mm

Rolex

Champagne · Yellow Gold, Stainless Steel

178243-0024 · 31 mm

+ 22 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