Rolex Cosmograph Daytona Oyster, 40 mm, Oystersteel and yellow gold M126503-0003
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Reference
126503
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Model case
Oyster, 40 mm, Oystersteel and yellow gold
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Water-resistance
Waterproof to 100 metres / 330 feet
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Bezel
Fixed, with engraved tachymetric scale, in yellow gold
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Dial
Black, golden counter rings
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Bracelet
Oyster, three-piece solid links
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Movement
Perpetual, mechanical chronograph, self-winding
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Calibre
4131, manufacture Rolex
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Power reserve
Approximately 72 hours
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Certification
Superlative Chronometer (COSC + Rolex certification after casing)
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The tachymetric scale
With its tachymetric scale, its three counters and its pushers, the Cosmograph Daytona was designed to be the ultimate timing tool for endurance racing drivers. The bezel features a tachymetric scale to read average speed over a given distance based on elapsed time. This scale offers optimal legibility, making the Cosmograph Daytona the ideal instrument for measuring speeds up to 400 units per hour, expressed in kilometres or miles.
Black dial
This model features a black dial with spray-coated counters, 18 ct gold applique hour markers and hands with a Chromalight display, a highly-legible luminescent material. The dial allows drivers to accurately map out their track times and tactics without fail.
Yellow Rolesor
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.
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