What is the difference between a chronometer and a superlative chronometer ?
Since 1973 the Controle Officiel Suisse Des Chronometers C.O.S.C has been the gold standard in watch precision certification , but some brands add more stringent requirements to their already COSC certified line up .
http://en.worldtempus.com/article/watch ... 26253.html
Chronometer & Superlative Chronometer
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Re: Chronometer & Superlative Chronometer
Thanks for posting another great read Bernie.
Cheers, Mike.
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