Datejust 31 Stainless Steel/ Rose Gold / Diamond / Chocolate - Diamond / Oyster

About This Watch

The Rolex Datejust 31, in its 278381RBR-0027 iteration, marries the brand’s enduring commitment to refined craftsmanship with a contemporary interpretation of classic elegance. The case, a harmonious blend of stainless steel and rose gold, frames a dial that exudes warmth and depth—its rich brown sunburst finish evokes the quiet sophistication of aged leather, while the gem-set indexes add a subtle sparkle without overwhelming the eye. The stick hands, paired with the sunburst dial, ensure legibility and a sense of timelessness, a hallmark of the Datejust collection since its introduction in 1945. This reference, with its 31mm diameter, strikes a balance between presence and discretion, making it a versatile companion for both formal occasions and everyday wear. At its core, the watch is powered by Rolex’s in-house automatic movement 2236, a testament to the brand’s mastery of precision engineering. This movement, equipped with a Parachrom balance spring and a Perpetual rotor, ensures exceptional accuracy and a 70-hour power reserve, embodying the quiet reliability that defines Rolex’s reputation. The Oyster caseback, sealed against the elements, underscores the watch’s robustness, while the sapphire crystal protects the dial with unimpeachable clarity. This timepiece is for those who value understated luxury—a collector seeking a watch that transcends trends, or a connoisseur who appreciates the marriage of heritage and modernity. It suits moments that demand both presence and restraint, from a black-tie gala to a quiet morning in a well-tailored suit.

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. 55 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.

278381RBR-0027 is one of 22 executions of the 278381RBR base reference. Underneath they are the same watch; what separates this one is a brown sunburst dial and a rose gold, stainless steel case.

Rolex

Rose · Rose Gold, Stainless Steel

278381RBR-0001 · 31 mm

Rolex

Rose · Rose Gold, Stainless Steel

278381RBR-0002 · 31 mm

Rolex

White · Rose Gold, Stainless Steel

278381RBR-0003 · 31 mm

Rolex

White · Rose Gold, Stainless Steel

278381RBR-0004 · 31 mm

Rolex

Brown · Rose Gold, Stainless Steel

278381RBR-0005 · 31 mm

Rolex

Brown · Rose Gold, Stainless Steel

278381RBR-0006 · 31 mm

Rolex

Rose · Rose Gold, Stainless Steel

278381RBR-0009 · 31 mm

Rolex

Rose · Rose Gold, Stainless Steel

278381RBR-0010 · 31 mm

+ 13 more variants in this family.

The 2236 is the Rolex movement inside more watches in this library than any other: 907, in the 28 mm Lady-Datejust and the 31 mm Datejust 31. It was the first Rolex caliber with a silicon hairspring. Introduced in 2014 in the Pearlmaster 34, it is a 20 mm automatic with a date, 31 jewels, a 55-hour reserve and a beat of 28,800 vph, certified by the COSC and then tested again by Rolex after casing to the Superlative Chronometer tolerance of two seconds a day. Its distinction is the Syloxi hairspring: silicon, immune to magnetism, etched to a patented geometry that keeps the spring concentric in every position, and paired with Paraflex shock absorbers. The larger Rolex calibers kept the Parachrom alloy spring; Syloxi did not reach a men's movement until the 7140 of 2023. The [2236 piece](/blog/the-rolex-2236-the-most-common-movement-in-this-library) sets out that history. In the library it powers 488 [Datejust 31](/brands/rolex/datejust-31) references, the seven-digit 2782xx generation of 2020, 399 [Lady-Datejusts](/brands/rolex/lady-datejust) of the 2791xx generation of 2015, 15 [Pearlmasters](/brands/rolex/pearlmaster) and 5 [Yacht-Master 37s](/brands/rolex/yacht-master). The [2235](/calibers/rolex-2235) is the 48-hour movement it replaced, the [2232](/calibers/rolex-2232) its no-date sibling for the Oyster Perpetual, and the [3235](/calibers/rolex-3235) its counterpart in the 36 mm and 41 mm cases.

906 other watches in the library run the Rolex 2236.

Rolex

Lady-Datejust 28 Rolesor Everose Diamond / Oyster / MOP

279381RBR-0014 · 28 mm

Rolex

Lady-Datejust 28 Rolesor Rose Diamond / Jubilee / MOP

279381rbr-0013 · 28 mm

Rolex

Lady-Datejust 28 Rolesor Yellow Domed / Oyster / MOP

279163-0014 · 28 mm

Rolex

Datejust 31 Stainless Steel / Yellow Gold / Diamond / Black MOP / Oyster

278383RBR-0023 · 31 mm