Datejust 31 Rose Gold / Domed / Grey / Oyster

About This Watch

The Rolex Datejust 31, in its rose gold iteration with a domed sapphire crystal, embodies the quiet authority of a timepiece that has defined elegance for generations. Introduced in 1945, the Datejust collection remains one of Rolex’s most enduring expressions of sophistication, and this 31mm reference refines its legacy with a modern, refined silhouette. The grey sunburst dial, paired with stick indexes and hands, exudes understated precision, while the domed sapphire crystal adds a subtle curvature that enhances the watch’s presence without overt theatricality. Rose gold, a material long associated with Rolex’s mastery of metallurgy, lends warmth and depth to the case, balancing the cool restraint of the dial. At its heart lies the Caliber 2236, an automatic movement that combines Rolex’s signature in-house engineering with a power reserve of approximately 55 hours. Its efficiency and reliability are hallmarks of the brand’s commitment to horological excellence, while the closed caseback—sealed with an Oyster case—reinforces the watch’s legendary water resistance to 100 meters. This is a timepiece that thrives in the interplay between tradition and modernity, where every detail is a testament to meticulous craftsmanship. Suited for those who value discretion as much as distinction, this Datejust 31 is an ideal companion for moments that demand both refinement and resilience—whether in boardrooms, at social gatherings, or during the quiet hours of personal reflection. It is not a statement, but a presence that lingers long after the watch is removed.

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.

278245-0025 is one of 24 executions of the 278245 base reference. Underneath they are the same watch; what separates this one is a grey sunburst dial and a rose gold case.

Rolex

White · Rose Gold

278245-0013 · 31 mm

Rolex

White · Rose Gold

278245-0014 · 31 mm

Rolex

Brown · Rose Gold

278245-0015 · 31 mm

Rolex

Brown · Rose Gold

278245-0016 · 31 mm

Rolex

White · Rose Gold

278245-0017 · 31 mm

Rolex

White · Rose Gold

278245-0018 · 31 mm

Rolex

White · Rose Gold

278245-0019 · 31 mm

Rolex

White · Rose Gold

278245-0020 · 31 mm

+ 15 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