v členskej sekcii sa nachádza informácia z prezídia OZH, kotré sa konalo 21. 2. 2017 v Bratislave
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Understanding COSC Certification and Its Importance in Watchmaking
COSC Certification and its Rigorous Standards
COSC, or the Controle Officiel Suisse des Chronometres, is the authorized Swiss testing agency that verifies the precision and accuracy of wristwatches. COSC accreditation is a mark of quality craftsmanship and dependability in chronometry. Not all timepiece brands pursue COSC accreditation, such as Hublot, which instead sticks to its own demanding standards with mechanisms like the UNICO, achieving similar precision.
The Science of Exact Chronometry
The central system of a mechanized timepiece involves the spring, which delivers power as it unwinds. This system, however, can be susceptible to environmental elements that may impact its precision. COSC-certified movements undergo demanding testing—over 15 days in various circumstances (5 positions, three temperatures)—to ensure their durability and dependability. The tests assess:
Average daily rate precision between -4 and +6 secs.
Mean variation, highest variation levels, and effects of temperature variations.
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For watch enthusiasts and collectors, a COSC-accredited watch isn't just a item of tech but a demonstration to enduring excellence and accuracy. It signifies a watch that:
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Is probable to maintain its value better, making it a wise choice.
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Several famous brands prioritize COSC validation for their watches, including Rolex, Omega, Breitling, and Longines, among others. Longines, for instance, offers collections like the Record and Spirit, which showcase COSC-accredited mechanisms equipped with advanced substances like silicone balance suspensions to boost resilience and performance.
Historic Background and the Evolution of Timepieces
The idea of the timepiece originates back to the requirement for exact chronometry for navigation at sea, emphasized by John Harrison's work in the 18th century. Since the official foundation of COSC in 1973, the certification has become a benchmark for judging the accuracy of luxury watches, maintaining a legacy of excellence in watchmaking.
Conclusion
Owning a COSC-accredited watch is more than an aesthetic selection; it's a dedication to excellence and accuracy. For those appreciating precision above all, the COSC accreditation offers peace of mind, guaranteeing that each certified watch will perform reliably under various conditions. Whether for personal satisfaction or as an investment, COSC-validated timepieces stand out in the world of horology, maintaining on a legacy of meticulous chronometry. -
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