Datejust 31 Stainless Steel/ Rose Gold / Diamond / Grey - Roman / Jubilee

About This Watch

The Rolex Datejust 31, in its 278381RBR-0030 iteration, embodies the quiet assurance of a timepiece that marries tradition with contemporary refinement. This reference, a member of the Datejust collection first introduced in 1945, balances the enduring elegance of the Jubilee bracelet with a modern reinterpretation of classic design. The case, a harmonious union of stainless steel and rose gold, frames a grey dial finished with a sunburst texture that catches light with subtle gradation. Roman numerals, rendered in polished gold, anchor the dial’s symmetry, while stick hands trace their path with precision. The presence of diamonds along the bezel adds a discreet touch of opulence, ensuring the watch remains both understated and distinctive. At its core, the Datejust 31 is powered by Rolex’s Caliber 2236, an automatic movement celebrated for its reliability and in-house engineering. With a power reserve of approximately 50 hours and a certified chronometer rating, it reflects the brand’s commitment to horological excellence. The closed caseback, while discreet, underscores the watch’s focus on wearability rather than ostentation—a philosophy that has defined the Datejust for generations. This timepiece is suited for those who value discretion as much as craftsmanship, serving as a versatile companion for both formal engagements and moments of quiet distinction. Its restrained glamour and heritage make it an enduring choice for collectors seeking a watch that transcends trends.

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-0030 is one of 22 executions of the 278381RBR base reference. Underneath they are the same watch; what separates this one is a grey 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