Datejust 31 Stainless Steel / Rose Gold / Domed / Silver - Diamond / Oyster

About This Watch

The Rolex Datejust 31, in its 278241-0015 iteration, embodies the quiet authority of a timepiece that balances tradition with contemporary refinement. This reference, part of the Datejust collection’s enduring legacy since 1945, marries the robustness of stainless steel with the warmth of 18ct rose gold, resulting in a case that is both resilient and elegantly proportioned at 31mm. The dial, a luminous silver sunburst finish, is framed by gem-set indexes that catch light with subtle precision, while stick hands add a sense of clarity and restraint. The domed sapphire crystal, paired with the Oyster case’s water resistance to 100 meters, underscores Rolex’s commitment to durability without compromising aesthetics. At its heart lies the Caliber 2236, an automatic movement renowned for its reliability and precision, featuring a Parachrom blue balance spring that ensures resilience against shocks and magnetic interference. This mechanical sophistication is rendered invisible to the eye, a hallmark of Rolex’s philosophy that engineering should serve function without drawing attention. The watch’s closed case back and polished lugs further emphasize its seamless integration of form and purpose. A testament to understated luxury, this Datejust 31 is suited for those who value discretion as much as craftsmanship. It thrives in the quiet confidence of a boardroom, the subtlety of a gala, or the quiet moments of everyday life—worn not as a statement, but as a reflection of the wearer’s discernment.

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.

278241-0015 is one of 24 executions of the 278241 base reference. Underneath they are the same watch; what separates this one is a silver sunburst dial and a rose gold, stainless steel case.

Rolex

White · Rose Gold, Stainless Steel

278241-0001 · 31 mm

Rolex

White · Rose Gold, Stainless Steel

278241-0002 · 31 mm

Rolex

Brown · Rose Gold, Stainless Steel

278241-0003 · 31 mm

Rolex

Brown · Rose Gold, Stainless Steel

278241-0004 · 31 mm

Rolex

Rose · Rose Gold, Stainless Steel

278241-0005 · 31 mm

Rolex

Rose · Rose Gold, Stainless Steel

278241-0006 · 31 mm

Rolex

Rose · Rose Gold, Stainless Steel

278241-0009 · 31 mm

Rolex

Rose · Rose Gold, Stainless Steel

278241-0010 · 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