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Referencem116500ln-0002
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Model caseOyster, 40 mm, Oystersteel
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BezelBlack monobloc Cerachrom bezel in ceramic with engraved tachymetric scale
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Water-resistanceWaterproof to 100 metres / 330 feet
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MovementPerpetual, mechanical chronograph, self-winding
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Calibre4130, Manufacture Rolex
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Power reserveApproximately 72 hours
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BraceletOyster, flat three-piece links
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DialHighly legible Chromalight display with long-lasting blue luminescence
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CertificationSuperlative Chronometer (COSC + Rolex certification after casing)


The tachymetric scale
A key part of the models identity is the bezel engraved with a tachymetric scale for measuring average speeds of up to 400 miles or kilometres per hour. Blending of high technology with sleek aesthetics, the black bezel is reminiscent of the 1965 model that was fitted with a black Plexiglas bezel insert.
Black Dial
This models Black dial with snailed counters features 18 ct gold applique hour markers and hands in Chromalight, a highly-legible luminescent material. The central sweep seconds hand allows an accurate reading of 1/8 second, while the two counters on the dial display the lapsed time in hours and minutes. Drivers can accurately map out their track times and tactics without fail.


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.
MODEL AVAILABILITY
The Rolex Cosmograph Daytona, introduced in 1963, was designed to meet the demands of professional racing drivers. With its highly reliable chronograph and bezel with tachymetric scale, it allows drivers to perfectly measure average speeds up to 400 kilometres or miles per hour, as they choose. An icon eternally joined in name and function to the high?performance world of motor sport.
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