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

About This Watch

The Rolex Datejust 31, in its 278381RBR-0009 iteration, stands as a masterclass in balancing tradition and refinement, blending the enduring elegance of the Datejust collection with the contemporary allure of rose gold and diamond detailing. The dial, a deep rose hue with a sunburst finish, radiates understated sophistication, its subtle luminosity enhanced by the polished stick hands and indexes that echo the clean, minimalist ethos of the collection. Introduced in 1945 as Rolex’s first self-winding waterproof chronometer with a date display, the Datejust has long symbolized the marriage of precision and timeless design—a legacy carried forward here through the 31mm case, which marries stainless steel with rose gold in a configuration that feels both modern and heirloom-worthy. The diamond-set bezel adds a discreet touch of opulence, its presence refined rather than ostentatious, while the sapphire crystal and 100-meter water resistance underscore the watch’s commitment to durability without compromising aesthetics. At its heart lies the Caliber 2236, an automatic movement with a 55-hour power reserve, its precision and reliability a testament to Rolex’s relentless pursuit of excellence. The closed caseback, though unadorned, invites contemplation of the craftsmanship within—a quiet nod to the brand’s ethos of subtlety. This watch is for those who seek a timepiece that transcends trends, serving as both a functional instrument and a quiet statement of discernment. It suits the boardroom, the gala, or the quiet moments between, its presence speaking volumes without needing to shout.

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-0009 is one of 22 executions of the 278381RBR base reference. Underneath they are the same watch; what separates this one is a rose 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-0010 · 31 mm

Rolex

Silver · Rose Gold, Stainless Steel

278381RBR-0015 · 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