Datejust 31 Rolesor Yellow Domed Diamond / Oyster / MOP Diamond

About This Watch

The Rolex Datejust 31, in its Rolesor iteration with a yellow-gold case and white mother-of-pearl dial, embodies the quiet authority of a timepiece that has defined elegance since its introduction in 1945. This particular reference, distinguished by its domed diamond bezel and gem-set indexes, merges the brand’s legacy of understated sophistication with a touch of refined opulence. The matte finish of the dial, paired with the subtle iridescence of the mother-of-pearl, creates a surface that shifts in tone with the light, while the stick hands and polished indexes ensure clarity without ostentation. The 31mm case, proportioned for modern wear yet rooted in the Datejust’s enduring silhouette, is framed by a sapphire crystal and a closed case back, emphasizing durability without compromising the watch’s refined aesthetic. At its core, the movement—a self-winding Caliber 2235—exemplifies Rolex’s commitment to precision engineering, with a 72-hour power reserve and a Parachrom balance spring that ensures reliability across conditions. The Rolesor construction, blending 18ct yellow gold with stainless steel, offers a balance of weight and wearability, a hallmark of the Datejust’s enduring appeal. This watch is for those who value heritage as much as craftsmanship, seeking a timepiece that transcends trends yet remains unmistakably rooted in tradition. It suits the boardroom, the gala, or the quiet moments of significance, serving as both a statement and a silent testament to the wearer’s discernment.

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.

178343-0006 is one of 34 executions of the 178343 base reference. Underneath they are the same watch; what separates this one is a white matte dial.

Rolex

Green · Yellow Gold, Stainless Steel

178343-0001 · 31 mm

Rolex

Silver · Yellow Gold, Stainless Steel

178343-0002 · 31 mm

Rolex

Champagne · Yellow Gold, Stainless Steel

178343-0003 · 31 mm

Rolex

White · Yellow Gold, Stainless Steel

178343-0004 · 31 mm

Rolex

Champagne · Yellow Gold, Stainless Steel

178343-0005 · 31 mm

Rolex

White

178343-0007 · 31 mm

Rolex

Black

178343-0008 · 31 mm

Rolex

Black

178343-0010 · 31 mm

+ 25 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