

To ensure the precision and reliability of its timepieces, Rolex submits each watch after assembly to a stringent series of tests. All new Rolex watches purchased from one of the brand’s Official Retailers come with a five-year international guarantee. When you buy a Rolex, the Official Retailer fills out and dates the Rolex guarantee card that certifies your watch’s authenticity.
The five-year guarantee which applies to all Rolex models is coupled with the green seal, a symbol of its status as a Superlative Chronometer. This exclusive designation attests that the watch has successfully undergone a series of specific final controls by Rolex in its own laboratories according to its own criteria, in addition to the official COSC certification of its movement.
Every Rolex is delivered in a beautiful green presentation box that is both protector and keeper of the jewel that nests inside it. As the presentation box is also a symbol of giving, it is important, if you are purchasing a gift, that the recipient’s first contact with their Rolex sets the stage for revealing what lies within.
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Reference
278240
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Model case
Oyster, 31 mm, Oystersteel
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Bezel
Domed
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Water resistance
Waterproof to 100 metres / 330 feet
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Movement
Perpetual, mechanical, self-winding
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Diameter
31 mm
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Winding crown
Screw-down, Twinlock double waterproofness system
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Spec crystal
Scratch-resistant sapphire, Cyclops lens over the date
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Caliber
2236, Manufacture Rolex
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Power reserve
Approximately 55 hours
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Bracelet
Jubilee, five-piece links
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Material
Oystersteel
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Dial
Bright blue
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Certification
Superlative Chronometer (COSC + Rolex certification after casing)
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Bracelet material
Oystersteel
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Clasp
Concealed folding Crownclasp
Bright blue 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.

Oystersteel
Rolex uses Oystersteel for its steel watch cases. Specially developed by the brand, Oystersteel belongs to the 904L steel family, alloys most commonly used in high-technology and in the aerospace and chemical industries, where maximum resistance to corrosion is essential. Oystersteel is extremely resistant, offers an exceptional finish once polished and maintains its beauty even in the harshest environments.

The Jubilee 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 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.


Model availability
All Rolex watches are assembled by hand with extreme care to meet the brand's high quality standards. Such a level of requirement naturally restricts Rolex's production capacities.
This is why the availability of certain Rolex models may be limited. New Rolex watches are available exclusively from official retailers, who are regularly stocked and independently manage the allocation of watches to customers.
Cooke & Kelvey has the honor of being part of the global network of official Rolex retailers and will be able to inform you about the availability of the different models.

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3 Scindia House Janpath, New Delhi
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