MAKE : Rolex
Model No : Cosmograph Daytona(OYSTER PERPETUAL)
A peerless chronometer and chronograph, the Oyster Perpetual Cosmograph Daytona is equipped with a sweep second hand, minute and hour totalisators, and a tachometer bezel. A favourite of professional drivers, it calculates average speeds and lap times.
The chronograph movement is entirely engineered and manufactured by Rolex. All the know-how of the brand went into its elegant design, which ensures utmost precision and endurance. This movement is one of the most admired in watchmaking. Its blue PARACHROM hairspring, specially developed to be resistant to shocks and magnetic fields, is a patented Rolex invention. The movement has a power reserve of 72 hours.
A peerless chronograph, the Oyster Perpetual Cosmograph Daytona, can be used to measure elapsed time and to calculate average speed. Two push buttons control the chronograph: a start-stop button and a reset button. The graduated bezel and sweep second hand provide tachometric functions.
When the push buttons on the Cosmograph Daytona are pressed, there is a distinct click. Rolex engineers used simulation and computer-aided design to perfect this crisp, clear sound and the perfect feel.
In a watch, the hairspring is vital to ensuring the movements precision. Rolex has pushed the performance of the hairspring to new limits. For its blue PARACHROM hairspring, Rolex created an innovative alloy, and designed the hairspring to be exceptionally resistant to magnetic fields and shocks, a new approach to an age-old challenge.
The unmatched precision of the PARACHROM hairspring is ensured by the leading-edge technology of Rolex manufacturing.
A unique alloy for a unique application.
In 1931, Rolex invented and patented the Perpetual rotor, the worlds first self-winding wristwatch mechanism. The Perpetual rotor allows the watch to run continuously as every flick of the wrist winds the movement. The energy generated is stored in the mainspring, which ensures an autonomy of 48 to 72 hours, depending on the model.
Triplock winding crown
The Triplock winding crown is designed to function at depths greater than most submarines. It screws down like a nautical hatch and incorporates three separate gaskets to seal out water and foreign matter.
This technically complex device consists of more than ten components and is waterproof to a pressure of 500 bars, or over half a ton per square centimetre.
Only a robust corrosion-resistant, stainless-steel alloy can meet the uncompromising standards of Rolex. It, therefore, uses a unique composition of 904L steel, which can withstand the harshest environments, from the highest peaks to the depths of the ocean. Rolex 904L steel can be polished to achieve an impeccable finish, contributing to the Oysters characteristic beauty.
In pursuit of perfection, Rolex makes its gold in its own foundry. It has the autonomy to apply the most rigorous standards and the freedom to create new alloys. Its yellow, white and Everose gold are timeless symbols of prestige and luxury.
Waterproofness is at the heart of the Rolex identity. Rolex invented the first waterproof watch, the Oyster, in 1926. Each Oyster is waterproof down to 100 metres/330 feet and is submitted to rigorous testing to ensure waterproofness beyond its guaranteed depth. Models created for divers symbolise the supremacy of Rolex waterproofness at even greater depths.
Rolex watches have conquered seas and oceans. A strong and privileged association with water is evident throughout the collection.
Crafted from a solid block of stainless steel, gold or platinum, the Oyster case undergoes more than 150 manufacturing steps. A miniature safe, it ensures absolute waterproofness and protects the Rolex movement under the most extreme conditions.
Each Rolex movement is submitted to rigorous testing by COSC (Swiss Official Chronometer Testing Institute), an independent organisation. For 15 days and 15 nights, each movement is tested in five different positions and subjected to three different temperatures. To be certified as a Swiss chronometer, the movement must successfully pass the COSC testing.
: One year.