Re: Инсульт: виды, причины, лечение

<a href=https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/>Brands that manufacture chronometer watches</a> Understanding COSC Validation and Its Importance in Watchmaking COSC Certification and its Strict Criteria Controle Officiel Suisse des Chronometres, or the Official Swiss Chronometer Testing Agency, is the official Switzerland testing agency that verifies the precision and precision of wristwatches. COSC certification is a mark of excellent craftsmanship and reliability in timekeeping. Not all watch brands follow COSC certification, such as Hublot, which instead follows to its proprietary demanding criteria with movements like the UNICO, attaining similar accuracy. The Art of Precision Timekeeping The central system of a mechanical timepiece involves the spring, which provides power as it unwinds. This mechanism, however, can be vulnerable to environmental elements that may affect its precision. COSC-validated movements undergo rigorous testing—over fifteen days in various circumstances (5 positions, 3 temperatures)—to ensure their durability and reliability. The tests evaluate: Average daily rate accuracy between -4 and +6 seconds. Mean variation, maximum variation levels, and impacts of temperature changes. Why COSC Accreditation Matters For watch aficionados and collectors, a COSC-accredited watch isn't just a piece of tech but a demonstration to enduring excellence and accuracy. It represents a watch that: Offers outstanding dependability and accuracy. Provides confidence of superiority across the entire construction of the timepiece. Is probable to hold its value better, making it a sound choice. Popular Timepiece Manufacturers Several well-known brands prioritize COSC certification for their timepieces, including Rolex, Omega, Breitling, and Longines, among others. Longines, for instance, offers collections like the Archive and Soul, which highlight COSC-accredited mechanisms equipped with innovative materials like silicone balance springs to enhance durability and performance. Historic Background and the Development of Timepieces The idea of the timepiece dates back to the requirement for accurate timekeeping for navigational at sea, emphasized by John Harrison's work in the 18th century. Since the formal foundation of Controle Officiel Suisse des Chronometres in 1973, the validation has become a benchmark for evaluating the precision of luxury timepieces, maintaining a tradition of excellence in watchmaking. Conclusion Owning a COSC-certified watch is more than an visual selection; it's a commitment to quality and accuracy. For those valuing accuracy above all, the COSC validation provides tranquility of thoughts, ensuring that each validated watch will function dependably under various circumstances. Whether for personal contentment or as an investment, COSC-certified watches distinguish themselves in the world of watchmaking, carrying on a legacy of precise timekeeping.