About
Omega 3802.71.53 / 38027153: Blending fashionability with a need for speed, the amazingly precise Omega Speedmaster watch (model 3802.71.53) has been matched with a delightfully supple aqua blue leather strap to soften its rugged good looks. This large, round watch features a silver rhodium-plated case thats topped by with engraved tachymeter readings, which can be used to measure time over distance. Its powered by a self-winding Omega 3220 caliber automatic movement, and includes chronograph timing functionality with three tonal subdials.
The white mother-of-pearl dial is supplemented by an Arabic numeral display in aqua blue, thin silver baton hands with luminosity (and seconds hand), and small seconds indexes. The watch case measures 41mm (1.61 inches) and 12mm thick (0.47 inches). Other features include water resistance to 100 meters (330 feet)--offering protection from accidental splashes as well suitable for swimming, snorkeling, and light recreational diving--and a hesalite acrylic crystal, which is resistant to temperature changes, high pressure, and shocks.
Automatic Watch Movement
An automatic watch is self-winding, and its movement has a reserve that must be at least partially filled prior to being worn. This is done by shaking and winding the timepiece manually. In order for an automatic timepiece to keep a reserve, it must be worn daily for 8 hours of active wear. This watch as a 40-hour power reserve.
How to Use a Tachymeter
A tachymeter is an instrument for measuring speed. It is a chronograph with a graduated dial on which speed can be read off in kilometers per hour based on 1000 meters distance. For example, the chronograph indicates that the distance of one kilometer has been covered in 30 seconds. The corresponding point on the tachymeter scale indicates 120, and thus the speed is 120km per hour.
The Omega Story
The Omega watch story begins in 1848, when founder Louis Brandt began hand assembling key-wound precision pocket watches from parts supplied by local craftsmen in his principality La Chaux-de-Fonds, in the northwest corner of Switzerland. However, the Omega name didnt appear until 1894, after Louis Brandt had passed away and his watchmaking traditions were taken over by his sons, Louis-Paul and Cesar Brandt. Omega watches have long been associated with glamorous screen and sports stars--the Omega Seamaster is famous for being the watch of choice for James Bond--with current ambassadors including Pierce Brosnan, Nicole Kidman, tennis player Anna Kournikova, and swimmers Michael Phelps and Ian Thorpe.
But Omega is more than just a fashionable watch. In 1965, the Omega Speedmaster chronograph was "flight-qualified by NASA for all manned space missions" as the only wristwatch to have withstood all of the U.S. space agencys severe tests, including passing grades for extreme shocks, vibrations, and temperatures ranging from -18 to +93 degrees Celsius. The greatest moment in the Speedmasters history was undoubtedly 20 July 1969 at 02:56 GMT, when it recorded mans first steps on the Moons surface as part of the Apollo 11 mission. Today, Omega is known for its rigorous testing of new movements, cases, and bands. Each new Omega movement is tested on the wrist in existing Omega models, while various laboratory tests are conducted to determine temperature-resistance, shock-resistance and vibration-resistance.
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