Datejust 31 Stainless Steel / Domed - Diamond / Blue - Floral / Oyster

About This Watch

The 278344RBR-0037 Datejust 31 stands as a refined interpretation of Rolex’s enduring commitment to understated sophistication, blending the brand’s storied heritage with contemporary elegance. Introduced in 2022, this model reimagines the Datejust’s classic silhouette through a harmonious interplay of materials: a 31-millimeter stainless steel case paired with a white gold bezel, its surface adorned with meticulously set diamonds that catch light with quiet precision. The dial, a deep, velvety blue, serves as a timeless canvas for the watch’s minimalist design—its absence of traditional indexes and the use of slender stick hands emphasizing a sense of clean, modern restraint. The sapphire crystal, paired with a closed case back, ensures durability without compromising the watch’s discreet, polished profile. At its heart lies the Caliber 2236, a self-winding movement engineered for reliability and precision, a testament to Rolex’s mastery of in-house horology. The Datejust collection, first introduced in 1945, has long epitomized the marriage of function and artistry, and this iteration continues that legacy with subtle modernity. Its 100-meter water resistance and Oyster case construction underscore its practicality, while the floral motif—etched into the dial’s surface—adds a touch of quiet intricacy. This watch is for the discerning individual who values heritage without ostentation, a piece suited to both formal occasions and the quiet confidence of everyday wear. It speaks to those who recognize luxury not in excess, but in the meticulous balance of craftsmanship, tradition, and timeless design.

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-0037 is one of 34 executions of the 278344RBR base reference. Underneath they are the same watch; what separates this one is a blue dial and a white gold, stainless steel case. Introduced in 2022.

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