Datejust 31 Rolesor Everose Fluted / Oyster / MOP Roman

About This Watch

The Rolex Datejust 31 178271-0077 exemplifies the enduring elegance of the Datejust collection, a lineage established in 1945 as one of the first self-winding waterproof chronometers with a date display. This particular iteration marries tradition with refinement, featuring a dial of mother-of-pearl in a luminous white hue, its natural iridescence subtly enhanced by the contrast of gold-toned Roman numerals and slender stick hands. Encased in Rolesor, a harmonious blend of 18ct everose gold and Oystersteel, the watch’s fluted bezel—a hallmark of the Datejust—adds a tactile and visual dimension that bridges the past and present. The sapphire crystal, paired with a closed caseback, ensures durability without compromising the dial’s understated sophistication, while the 31mm diameter and 16mm lug width offer a balanced presence on the wrist. At its core lies the Caliber 2235, a self-winding movement with a Parachrom blue balance spring and a certified chronometer rating, reflecting Rolex’s commitment to precision and reliability. The watch’s 100-meter water resistance and Oyster case construction underscore its practicality, though its appeal lies in its ability to transition seamlessly from formal engagements to everyday wear. For those who value heritage, craftsmanship, and a design that remains unburdened by trends, this Datejust 31 is a testament to the quiet confidence of a timepiece that needs no embellishment to command respect.

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.

178271-0077 is one of 31 executions of the 178271 base reference. Underneath they are the same watch; what separates this one is a white dial.

Rolex

Pink · Rose Gold, Stainless Steel

178271-0001 · 31 mm

Rolex

Silver · Rose Gold, Stainless Steel

178271-0003 · 31 mm

Rolex

Pink · Rose Gold, Stainless Steel

178271-0005 · 31 mm

Rolex

White · Rose Gold, Stainless Steel

178271-0010 · 31 mm

Rolex

Pink · Rose Gold, Stainless Steel

178271-0012 · 31 mm

Rolex

Black · Rose Gold, Stainless Steel

178271-0017 · 31 mm

Rolex

Silver · Rose Gold, Stainless Steel

178271-0024. · 31 mm

Rolex

Silver · Rose Gold, Stainless Steel

178271-0030 · 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