Datejust 31 Rolesor Yellow Fluted Diamond / Jubilee / Black

About This Watch

The Rolex Datejust 31 Reference 178313-0001 embodies the quiet authority of a timepiece that balances heritage with modern refinement. Its Rolesor construction—yellow gold intertwined with stainless steel—creates a visual harmony that has defined Rolex’s signature aesthetic for decades. The fluted diamond bezel, a hallmark of the Datejust collection since its introduction in 1945, adds a subtle yet unmistakable touch of opulence, while the black dial offers a striking contrast to the warm tones of the case. Stick hands and indexes, paired with a dot at the 12 o’clock position, ensure clarity without sacrificing elegance, a design philosophy that has endured through generations of collectors. The Jubilee bracelet, with its five-link design, wraps the wrist with a combination of comfort and sophistication, reinforcing the Datejust’s reputation as a versatile yet unmistakably luxurious watch. At its core, the watch is powered by Rolex’s Caliber 2235, an automatic movement renowned for its precision, durability, and seamless date complication. Encased in a 31mm round case with a sapphire crystal and a closed case back, it is both a tribute to traditional craftsmanship and a testament to the brand’s engineering rigor. The 100-meter water resistance and the precision of the movement underscore the watch’s practicality without compromising its status as a symbol of achievement. This timepiece is for those who value understated excellence—a collector seeking a piece that bridges the past and present, or a connoisseur who appreciates the quiet confidence of a watch that needs no embellishment to command respect. It suits occasions where presence matters more than noise, and where legacy is worn with quiet assurance.

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.

178313-0001 is one of 31 executions of the 178313 base reference. Underneath they are the same watch; what separates this one is a black dial and a yellow gold, stainless steel case.

Rolex

White

178313-0002 · 31 mm

Rolex

Champagne · Yellow Gold, Stainless Steel

178313-0006 · 31 mm

Rolex

Silver · Yellow Gold, Stainless Steel

178313-0013 · 31 mm

Rolex

Champagne · Yellow Gold, Stainless Steel

178313-0017 · 31 mm

Rolex

Black · Yellow Gold, Stainless Steel

178313-0021 · 31 mm

Rolex

Black

178313-0026 · 31 mm

Rolex

Silver · Yellow Gold, Stainless Steel

178313-0027 · 31 mm

Rolex

Champagne · Yellow Gold, Stainless Steel

178313-0028 · 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