Name: Rolex datejust
Brand: Rolex
SKU: M278288RBR-0005

Datejust 31

Discover the collection

Watch Features

The instantaneous date

18 ct gold

By operating its own exclusive foundry, Rolex has the unrivalled ability to cast the highest quality 18 ct gold alloys. According to the proportion of silver, copper, platinum or palladium added, different types of 18 ct gold are obtained: yellow, pink or white. They are made with only the purest metals and meticulously inspected in an in-house laboratory with state-of-the-art equipment, before the gold is formed and shaped with the same painstaking attention to quality. Rolex's commitment to excellence begins at the source.

Champagne-colour Dial

The dial is the distinctive face of a Rolex watch, the feature most responsible for its identity and readability. Characterised by hour markers fashioned from 18 ct gold to prevent tarnishing, every Rolex dial is designed and manufactured in-house, largely by hand to ensure perfection.

The President bracelet

The design, development and production of Rolex bracelets and clasps, as well as the stringent tests they face, involve advanced high technology. And, as with all the components of the watch, aesthetic controls by the human eye guarantee impeccable beauty. The President bracelet, with its semi-circular three piece links, was created in 1956 for the launch of the Oyster Perpetual Day-Date. It represents the ultimate in refinement and comfort and is always made of carefully selected precious metals.

2236 Movement

The calibre 2236 is a new-generation self-winding mechanical movement entirely developed and manufactured by Rolex. Fitted with a Syloxi hairspring in silicon, patented by Rolex, it offers a superlative level of chronometric performance. Insensitive to magnetic fields, the Syloxi hairspring provides great stability in the face of temperature variations and remains up to 10 times more precise than a traditional hairspring in case of shocks. Its patented geometry ensures its regularity in any position.

The Cyclops Lens

The Cyclops lens enhances the date aperture, magnifying the date display for easy reading. It is one of the most distinctive Rolex features, and one of the most recognisable.

Specifications

Reference 278288RBR

Model case: Model case
Oyster, 31 mm, yellow gold and diamonds; Oyster architecture
Monobloc middle case, screw-down case back and winding crown; Diameter
31 mm; Material
18 ct yellow gold; Bezel
Set with diamonds; Winding crown
Screw-down, Twinlock double waterproofness system; Crystal
Scratch-resistant sapphire, Cyclops lens over the date; Water-resistance
Waterproof to 100 metres / 330 feet

Movement: Movement
Perpetual, mechanical, self-winding; Calibre
2236, Manufacture Rolex; Precision
-2/+2 sec/day, after casing; Functions
Centre hour, minute and seconds hands. Instantaneous date with rapid setting. Stop-seconds for precise time setting; Oscillator
Syloxi hairspring in silicon with patented geometry. High-performance Paraflex shock absorbers; Winding
Bidirectional self-winding via Perpetual rotor; Power reserve
Approximately 55 hours