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Referencem228238-0042
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Model caseOyster, 40 mm, yellow gold
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BezelFluted
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Water-resistanceWaterproof to 100 metres / 330 feet
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MovementPerpetual, mechanical, self-winding
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Calibre3255, Manufacture Rolex
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Power reserveApproximately 70 hours
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BraceletPresident, semi-circular three-piece links
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Dial
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CertificationSuperlative Chronometer (COSC + Rolex certification after casing)


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.
White 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.


18 ct yellow 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.
MODEL AVAILABILITY
The Oyster Perpetual Day-Date made its debut in 1956. Available only in 18 ct gold or platinum, it was the first calendar wristwatch to display the day spelt out in full in a window on the dial in addition to the date. With the President bracelet, created specially for it, the Day-Date embodies the essence of Rolex prestige and excellence.
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