COSC Sets Record for Chronometers

The Swiss Official Chronometer Testing Institute (Controle Officiel Suisse des Chronometres, or COSC) certified 1,255,515 mechanical and quartz chronometers in 2001—a 23.3% increase over the previous year's figure and a new record. The total number of watches registered for testing rose to 1,315,752. COSC, headquartered in La Chaux-de-Fonds, Switzerland, is the official independent bureau testing the accuracy of Swiss-made watches submitted for eligibility as chronometers. If a watch's movement passes stringent tests lasting 15 consecutive days, it is certified as a chronometer. Of those receiving COSC certification in 2001, 1,198,073 were mechanical chronometers. That's 25.9% more than in 2000 (when the COSC topped 1 million mechanicals for the first time) and "is proof of the growing interest among the public for these top-of-the-range products," says the Swiss Federation of Watc
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