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.
Black Dial
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.
The Oyster 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 Oyster bracelet is a perfect alchemy of form and function. First introduced in the late 1930s, this particularly robust and comfortable metal bracelet with its broad, flat three-piece links remains the most universal bracelet in the Oyster collection.
4130 Movement
The Cosmograph Daytona is equipped with calibre 4130, a self-winding mechanical chronograph movement entirely developed and manufactured by Rolex. Its architecture incorporates far fewer components than a standard chronograph, thereby enhancing the movement’s reliability. Like all Rolex Perpetual movements, the 4130 is a certified Swiss chronometer, a designation reserved for high-precision watches that have successfully passed the Swiss Official Chronometer Testing Institute (COSC) tests. The chronograph movement features a Parachrom hairspring, offering greater resistance to shocks and to temperature variations.
Start, Drive, Stop
The Daytona’s chronograph functions are activated by pushers that screw down like the winding crown when they are not in use, guaranteeing waterproofness to 100 metres. One press to start, stop or reset the chronograph produces a crisp, clear click that was perfected using the most advanced technology. Rolex watchmakers also perfected the mechanism to suit the ideal finger pressure on the pushers, and engineered it to provide an instantaneous and accurate start to the timing without sacrificing reliability.
Specifications
- Model case
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Model caseOyster, 40 mm, Oystersteel and yellow gold
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Oyster architectureMonobloc middle case, screw-down case back and winding crown
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Diameter40 mm
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MaterialYellow Rolesor - combination of Oystersteel and 18 ct yellow gold
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BezelFixed, with engraved tachymetric scale, in 18 ct yellow gold
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Winding crownScrew-down, Triplock triple waterproofness system
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CrystalScratch-resistant sapphire
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Water-resistanceWaterproof to 100 metres / 330 feet
- Movement
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MovementPerpetual, mechanical chronograph, self-winding
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Calibre4130, Manufacture Rolex
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Precision-2/+2 sec/day, after casing
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FunctionsCentre hour, minute and seconds hands, small seconds hand at 6 o'clock. Chronograph (centre hand) accurate to within 1/8 of a second, 30-minute counter at 3 o'clock and 12-hour counter at 9 o'clock. Stop seconds for precise time setting
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OscillatorParamagnetic blue Parachrom hairspring
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WindingBidirectional self-winding via Perpetual rotor
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Power reserveApproximately 72 hours
- Bracelet
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BraceletOyster, flat three-piece links
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Bracelet materialYellow Rolesor - combination of Oystersteel and 18 ct yellow gold
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ClaspFolding Oysterlock safety clasp with Easylink 5 mm comfort extension link
- Dial
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DialBlack set with diamonds
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Gem-settingDiamonds in 18 ct gold settings
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DetailsDial with snailed small counters
- Certification
- Superlative Chronometer (COSC + Rolex certification after casing)
