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Combining the technology cultivated in the long history of the Rolex!
Chronograph models "Cosmograph Daytona' at the end of 1950-and early 1960s called, known as 'predaytona' in Daytona earlier Rolex chronograph chronograph existed. And with improved Cal.72 manufactured by Valjoux movement NET Cal.72B, among them black dial model is almost absent.
In 1961, when I appeared with Ref.6239. It is be admired all this models, Daytona first. Because this model is not screw push button was just 30 M waterproof. For that is 'OYSTER' character has no dial, and nonoy star called Daytona until the second generation.
Daytona appeared in 1988, after the then third-generation and fourth-generation be good you will be a model for did you know. Powered by Cal.4030 improved the chronograph automatic movement Zenith company "El Primero", was the birth of the first Rolex automatic chronograph. Windshield in the Sapphire design scratch-resistant, Crown and triplock winding with 100 M water resistance up to 2 times was a big feature.
And Daytona played a facelift in 2000, becomes the fifth generation model here. In the design topics is powered by in-house development chronograph movement's first Rolex, Cal.4130, but few major changes. Highlights this power reserve from the 52 hours to 72 hours and significant expansion and further mounted hack features.
Refers to the models tend to be generally refers to a perpetual calendar that is, if the Rolex with all rotating rotor automatic winding mechanism or organization.
Is that certification gives the movement passes in Switzerland, the Controle Officiel Suisse des Chronometres (COSC) chronometer testing Institute, demanding accuracy test.
As proof that the dial design characters "CHRONOMETER, CHRONOMETER OFFICIALLY CERTIFIED.
Testing is done in a laboratory in Geneva and Le Locle, or Bienne. 5 positional (position) and three temperature difference in test item and checks the accuracy of movement for 15 days.
Shipped the chronometer and listed dial movement chronometer certified, could pass only.
Technology only this accurate for low vibration without any electronics, such as electricity, born from the movement of the spring and metal would be a boon of mechanical watches over the hundreds of years of history.
||Case diameter: 39 mm (excluding Crown)
||Case: 18 K yellow gold and stainless steel
Belt: 18 K yellow gold and stainless steel
||Self-winding chronometer /Cal.4130/ / power reserve [maximum 72 hours]
||water resistant 100 m
||Private BOX international warranty our warranty
||Our 2-year warranty
|* This item is not available cod.
※ Image is different from actual colors due to the light.