Certifications and standards! COSC certification is one of the most common. To earn it, a movement has to run within -4 to 6 seconds per day, tested in multiple positions and temperatures. Then there’s METAS, which sets a higher benchmark. Beyond COSC-level accuracy, METAS-certified watches are tested after they’re fully cased up, not just the raw movement. They face exposure to magnetic fields up to 15,000 gauss, extremes in water resistance, their power reserve is tested to ensure it meets the

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85K views · 977 reactions | 푾풉풂풕 풕풐 푷풓풆풑풂풓풆 풃풆풇풐풓풆 푨풑풑풍풊풄풂풕풊풐풏?...