Datejust 31 Stainless Steel Domed Diamond / Oyster / Pink - Diamond

About This Watch

The Rolex Datejust 31, in its 2020 iteration with a pink dial and diamond-set bezel, represents a refined balance of tradition and modernity within the brand’s storied heritage. Introduced as part of the Datejust collection—a lineage established in 1945 as the first self-winding waterproof chronometer wristwatch—this model updates the classic silhouette with subtle yet deliberate sophistication. The 31mm stainless steel case, accented by a white gold bezel encrusted with diamonds, frames a dial that evokes both warmth and precision. The sunburst pink finish, paired with gem-set indexes and slender stick hands, creates a visual harmony that is both striking and restrained, a hallmark of Rolex’s design philosophy. The domed sapphire crystal and Oyster caseback, rated to 100 meters, ensure durability without compromising the watch’s elegant profile. At its core, the Datejust 31 houses the in-house automatic movement 2236, a testament to Rolex’s engineering rigor. This COSC-certified caliber offers a power reserve of approximately 55 hours, paired with a Parachrom blue balance spring that enhances resistance to shocks and magnetic fields. The movement’s precision and reliability, combined with the watch’s understated opulence, make it a compelling choice for those who seek a timepiece that transcends trends. This watch is for the discerning individual who values heritage, craftsmanship, and subtlety in design. It suits formal occasions with its refined presence, yet its proportions and versatility make it equally at home in everyday wear, appealing to those who prefer a quiet statement of excellence.

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.

278344RBR-0033 is one of 34 executions of the 278344RBR base reference. Underneath they are the same watch; what separates this one is a pink sunburst dial and a white gold, stainless steel case. Introduced in 2020.

Rolex

Black · White Gold, Stainless Steel

278344RBR-0001 · 31 mm

Rolex

Black · White Gold, Stainless Steel

278344RBR-0002 · 31 mm

Rolex

White

278344RBR-0005 · 31 mm

Rolex

White

278344RBR-0006 · 31 mm

Rolex

Grey · White Gold, Stainless Steel

278344RBR-0007 · 31 mm

Rolex

Grey · White Gold, Stainless Steel

278344RBR-0008 · 31 mm

Rolex

White · White Gold, Stainless Steel

278344RBR-0011 · 31 mm

Rolex

White · White Gold, Stainless Steel

278344RBR-0012 · 31 mm

+ 25 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