18 ct 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.


Champagne-colour 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.
The President 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 President bracelet, with its semi-circular three piece links, was created in 1956 for the launch of the Oyster Perpetual Day-Date. It represents the ultimate in refinement and comfort and is always made of carefully selected precious metals.


2236 Movement
The calibre 2236 is a new-generation self-winding mechanical movement entirely developed and manufactured by Rolex. Fitted with a Syloxi hairspring in silicon, patented by Rolex, it offers a superlative level of chronometric performance. Insensitive to magnetic fields, the Syloxi hairspring provides great stability in the face of temperature variations and remains up to 10 times more precise than a traditional hairspring in case of shocks. Its patented geometry ensures its regularity in any position.

The Cyclops Lens
The Cyclops lens enhances the date aperture, magnifying the date display for easy reading. It is one of the most distinctive Rolex features, and one of the most recognisable.
Specifications
- Model case
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Model caseOyster, 31 mm, yellow gold and diamonds
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Oyster architectureMonobloc middle case, screw-down case back and winding crown
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Diameter31 mm
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Material18 ct yellow gold
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BezelSet with diamonds
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Winding crownScrew-down, Twinlock double waterproofness system
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CrystalScratch-resistant sapphire, Cyclops lens over the date
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Water-resistanceWaterproof to 100 metres / 330 feet
- Movement
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MovementPerpetual, mechanical, self-winding
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Calibre2236, Manufacture Rolex
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Precision-2/+2 sec/day, after casing
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FunctionsCentre hour, minute and seconds hands. Instantaneous date with rapid setting. Stop-seconds for precise time setting
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OscillatorSyloxi hairspring in silicon with patented geometry. High-performance Paraflex shock absorbers
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WindingBidirectional self-winding via Perpetual rotor
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Power reserveApproximately 55 hours
- Bracelet
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BraceletPresident, semi-circular three-piece links
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Bracelet material18 ct yellow gold
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ClaspConcealed folding Crownclasp
- Dial
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DialChampagne-colour set with diamonds
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Gem-settingDiamonds in 18 ct gold settings
- Certification
- Superlative Chronometer (COSC + Rolex certification after casing)
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