Datejust 31 Yellow Gold Fluted / Oyster / Champagne Roman

About This Watch

The Rolex Datejust 31, in its refined iteration of yellow gold with a champagne dial, embodies the quiet authority of a timepiece that has defined elegance since its introduction in 1945. The fluted bezel, a hallmark of the collection’s enduring design language, frames a dial that captures the subtlety of sunburst champagne, its radiance shifting with the angle of light. Roman numerals, rendered in a crisp, understated hand, complement the stick hands that trace the hours with precision, while the sapphire crystal ensures clarity without intrusion. The case, forged from yellow gold, is both a nod to tradition and a testament to Rolex’s mastery of metallurgy, its polished surfaces reflecting a balance between warmth and durability. At its heart lies the Caliber 2235, an automatic movement distinguished by its Parachrom blue balance spring and a date display that operates with the seamless reliability expected of a Rolex. The 31-millimeter case, paired with a lug width that ensures a secure fit, speaks to the brand’s commitment to proportion and wearability, making this watch as practical as it is refined. The Oyster caseback, sealed against the elements, underscores the collection’s legacy of robustness and precision. This watch is for the discerning individual who values understated sophistication—whether for a formal occasion, a quiet moment of reflection, or as a companion to a life lived with purpose. It is not a statement, but a silent assertion of quality, heritage, and the quiet confidence of a timepiece that needs no embellishment.

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.

178278-0133 is one of 37 executions of the 178278 base reference. Underneath they are the same watch; what separates this one is a champagne sunburst dial and a yellow gold case.

Rolex

White · Yellow Gold

178278-0010 · 31 mm

Rolex

Champagne · Yellow Gold

178278-0018 · 31 mm

Rolex

Champagne · Yellow Gold

178278-0021 · 31 mm

Rolex

Champagne · Yellow Gold

178278-0025 · 31 mm

Rolex

Silver · Yellow Gold

178278-0028 · 31 mm

Rolex

Silver · Yellow Gold

178278-0031 · 31 mm

Rolex

Silver · Yellow Gold

178278-0034 · 31 mm

Rolex

Silver · Yellow Gold

178278-0037 · 31 mm

+ 28 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.