Oyster Perpetual Datejust 31 in white Rolesor features a mint green dial and a Jubilee bracelet.
OYSTER PERPETUAL DATEJUST 31
Rolex introduced four new white Rolesor versions (combining Oystersteel and 18 ct white gold) of the Oyster Perpetual Datejust 31 in 2020. Find out more on the link.
Datejust 31 Ref. 278274 features a mint green, sunray-finish dial, and a fluted bezel in 18 ct white gold. The hands and index hour markers are in 18 ct white gold. The light reflections on the case sides and lugs highlight the elegant profile of the 31 mm Oyster case.
Datejust 31 Ref. 278274 in white Rolesor features a mint green dial.
Rolex’s Datejust is the archetype of the classic watch thanks to functions and aesthetics that never go out of fashion. Launched in 1945, it was the first self-winding waterproof chronometer wristwatch to display the date in a window at 3 o’clock on the dial, and consolidated all the major innovations that Rolex had contributed to the modern wristwatch until then. The Datejust has spanned eras while retaining the enduring aesthetic characteristics that make it so instantly recognizable.
Rolex’s Datejust is the archetype of the classic watch thanks to functions and aesthetics that never go out of fashion.
MINT GREEN DIAL
The sunray finish creates delicate light reflections on many dials in the Oyster Perpetual collection. It is obtained using masterful brushing techniques that create grooves running outwards from the centre of the dial. Light is diffused consistently along each engraving, creating a characteristic subtle glow that moves depending on the position of the wrist.
Once the sunray finish has been completed, the dial colour is applied using Physical Vapour Deposition or electroplating. A light coat of varnish gives the dial its final look.
The dial is the distinctive face of a Rolex watch, the feature most responsible for its identity and readability.
The Rolex fluted bezel is a mark of distinction. Originally, the fluting of the Oyster bezel had a functional purpose: it served to screw the bezel onto the case helping to ensure the waterproofness of the watch. It was therefore identical to the fluting on the case back, which was also screwed onto the case for waterproofness, using specific Rolex tools. Over time, the fluting became an aesthetic element, a genuine Rolex signature feature. Today the fluted bezel is a mark of distinction, always in gold.
The Rolex fluted bezel is a mark of distinction which is, without exception, always in gold.
Gold is coveted for its lustre and nobility. Steel reinforces strength and reliability. Together, they harmoniously combine the best of their properties. A true Rolex signature, Rolesor has featured on Rolex models since the early 1930s, and was trademarked as a name in 1933. It is one of the prominent pillars of the Oyster collection.
Rolesor is the combination of two metals: noble and precious gold, attractive for its lustre and stability; and steel known for its resistance to corrosion, ensures strength and reliability.
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 Jubilee, a supple and comfortable five-piece link metal bracelet, was designed and made especially for the launch of the Oyster Perpetual Datejust in 1945.
This version of the Datejust 31 is fitted with a supple and comfortable five-piece link Jubilee bracelet.
A paragon of robustness and elegance, the Oyster case of the Datejust 31 is guaranteed waterproof to a depth of 100 metres (330 feet). Its middle case is crafted from a solid block of Oystersteel, a particularly corrosion-resistant alloy. The case back, edged with fine fluting, is hermetically screwed down with a special tool that allows only Rolex watchmakers to access the movement. The Twinlock winding crown, fitted with a double waterproofness system, screws down securely against the case. The crystal is made of virtually scratchproof sapphire and is fitted with a Cyclops lens at 3 o’clock for easy reading of the date. The waterproof Oyster case provides optimum protection for the watch’s movement.
The Oyster case of the Datejust 31 is made of white Rolesor and waterproof to a depth of 100 metres (330 feet).
PERPETUAL CALIBRE 2236
The new versions of the Datejust 31 are equipped with calibre 2236, a movement entirely developed and manufactured by Rolex. At the forefront of watchmaking technology, this self-winding mechanical movement led to the filing of several patents, and offers fundamental gains in terms of precision, power reserve, resistance to shocks and magnetic fields, convenience and reliability.
Calibre 2236 is fitted with a Syloxi hairspring, patented and produced by Rolex. This silicon hairspring remains up to 10 times more precise than a traditional hairspring in case of shocks, and its patented geometry ensures the calibre’s regularity in any position. The movement also contains a paramagnetic nickel-phosphorus escape wheel. The oscillator is fitted on the Rolex-designed and patented high-performance Paraflex shock absorbers, increasing the movement’s shock resistance.
Calibre 2236 offers a power reserve of approximately 55 hours.
SUPERLATIVE CHRONOMETER CERTIFICATION
Like all Rolex watches, each Datejust 31 is covered by the Superlative Chronometer certification redefined by Rolex in 2015. This exclusive designation testifies that every watch leaving the brand’s workshops has successfully undergone a series of tests conducted by Rolex in its own laboratories according to its own criteria. These certification tests apply to the fully assembled watch, after casing the movement, guaranteeing superlative performance on the wrist in terms of precision, power reserve, waterproofness and self-winding. The precision of a Rolex Superlative Chronometer is of the order of −2/+2 seconds per day, or more than twice that required of an official chronometer.
The Superlative Chronometer status is symbolized by the green seal that comes with every Rolex watch and is coupled with an international five-year guarantee.
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