The COSC Certification – Chronometry saga Part 5

The COSC certificate is the most widespread label validating a watch's precision.  Respecting the ISO 3159 international norm, it ensures the accuracy of a movement, and rarely a finished watch. We visited one of the three workshops that control more than 1.6 million calibers every year to interview its director Andreas Wyss. He underscores one particular fact: even if the norm was implemented in 1976, the level of precision remains, in particular as the thousands of movements produced every day must respect it.  

Previous
Previous

Hallmark Of Geneva At A Nano Scale

Next
Next

Adjusting The Movement – Chronometry Saga n°4