Sell Watches Boca Raton COSC, more formally known as Contrôle Officiel Suisse des Chronomètres, is the official certification company of Switzerland. There job is to test watch movements in different positions and different temperatures over a period of 16 days. The movement must perform within a certain margin for error otherwise the watch will not be… Continue reading Top Chronometer Brands – Sell Watches Boca Raton
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Top 10 Certified Chronometer Watch Producers 2011
Top 10 Certified Chronometer Watch Producers 2011 The COSC, or Controle Officiel Suisse des Chronometres, is responsible for the certification of the accuracy of precision watches produced in Switzerland. In other words, the COSC certifies whether the movement inside your luxury watch keeps accurate time. The COSC has strict standards and not every automatic watch will be… Continue reading Top 10 Certified Chronometer Watch Producers 2011
