COSC - Wikipedia, the free encyclopedia
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COSC aka C.O.S.C. is Contrôle Officiel Suisse des Chronomètres , the Official Swiss Chronometer Testing Institute, which is the institute responsible for certifying the accuracy and precision of ...
en.wikipedia.org/wiki/COSC
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A very helpful article that explains Swiss Chronometers and the COSC. ... The C.O.S.C. and chronometer certification: what is it, and what does it mean? A chronometer is a watch whose movement has passed specific tests verifying it’s timekeeping precision. The chronometer testing is open to ... Swiss Chronometers and COSC...
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www.lussori.com/swiss-chronometer-cosc-watches.html
www.lussori.com/swiss-chronometer-cosc-watches.html
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But for a Swiss made watch to be called a chronometer, it must meet certain very high standards set by the Swiss Official Chronometer Control (C.O.S.C.). If you have a Swiss watch labeled as a chronometer, you can be certain that it has a mechanical movement of the very highest quality.
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www.2000watches.com/vshop/watch_glossary.html
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Only watch movements certified with a COSC 'bulletin de marche' (certificate of watch performance) are allowed to bear the internationally protected label "Official Swiss Chronometer" or even use the word "Chronometer" anywhere on the product, packaging or advertising.
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www.chronocentric.com/watches/accuracy.shtml
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Breitling Navitimer Heritage 109 Swiss Chronometer Watch ... Breitling offers the Breitling Navitimer 100 Swiss Chronometer Watch for those that require a watch of both quality design and high functionality. With the Breitling Navitimer 100 Swiss Chronometer Watch, you couldn't be in safer hands.
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watches.lovetoknow.com/wiki/Breitling_Navitimer_100_Swi...
watches.lovetoknow.com/wiki/Breitling_Navitimer_100_Swiss_Chronometer_Watch
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Navitimer Heritage 110 Swiss Chronometer Watch This chronograph is endowed with a built in navigation computer and is capable of performing all calculations a flight plan requires. This piece is powered by a Selfwinding mechanical complication.
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www.amazon.com/Navitimer-Heritage-Swiss-Chronometer-Wat...
www.amazon.com/Navitimer-Heritage-Swiss-Chronometer-Watch/dp/B0007U6JLM
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Although the world economy is once again showing signs of life, the Swiss watch industry, a barometer of high-end spending, continues to suffer as wealthy customers shun conspicuous consumption. DW-WORLD.DE: German and European news, analysis and multimedia from Deutsche Welle - in 30 languages ... Repairing a Swiss watch...
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www.dw-world.de/dw/article/0,,4815311,00.html
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Pieces of Time, Swiss Deck Chronometer. Antique and Precision pocket watches ... A mid 19th Century Swiss pivoted detent chronometer fitted in a brass marine chronometer bowl and mahogany deck box. Keywind gilt bar movement with going barrel. Plain cock with polished steel regulator. Compensation balance with blue steel...
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www.antique-watch.com/des/w4123.html
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Status of Swiss Deck Chronometer from Pieces of Time -- The world's largest specialist antique web site. Over a 1000 Antique Watches, all fully illustrated and Indexed to help you find the Precision or Vintage watch you are looking for. ... Ref. - A7339 ... Special Offer Price:-; UK Pounds £1125; US Dollars $1857 ; Euros €- 1238...
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www.antique-watch.com/stat/w4123.html
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