Datejust 31 Rolesor Everose Domed Diamond / Oyster / Black MOP

About This Watch

The Rolex Datejust 31 has long stood as a paragon of understated elegance, and the 178341-0034 incarnation elevates the collection’s legacy with a refined interplay of materials and craftsmanship. The case, constructed from Rolesor—Rolex’s signature alloy of 18ct Everose gold and 904L stainless steel—offers a striking balance of warmth and durability, while the domed diamond dial, set against a deep black mother-of-pearl background, exudes quiet sophistication. Gem-set indexes trace the hour markers with precision, their subtle sparkle complementing the stick hands that sweep with quiet authority. At 31mm in diameter, the watch adheres to the collection’s classic proportions, ensuring a timeless fit that bridges tradition and modernity. Beneath the sapphire crystal lies the Caliber 2235, a self-winding movement with a date display and a Parachrom balance spring, engineered to withstand extreme conditions without compromising accuracy. The Oyster case, sealed with a screw-down

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.

178341-0034 is one of 34 executions of the 178341 base reference. Underneath they are the same watch; what separates this one is a black dial.

Rolex

White · Rose Gold, Stainless Steel

178341-0001 · 31 mm

Rolex

Pink · Rose Gold, Stainless Steel

178341-0002 · 31 mm

Rolex

Pink · Rose Gold, Stainless Steel

178341-0003 · 31 mm

Rolex

White

178341-0004 · 31 mm

Rolex

White

178341-0005 · 31 mm

Rolex

Pink · Rose Gold, Stainless Steel

178341-0006 · 31 mm

Rolex

White

178341-0007 · 31 mm

Rolex

Purple · Rose Gold, Stainless Steel

178341-0008 · 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