
The reliability of an independent label
Founded on principles of fairness and transparency, the COSC pays tribute to the genius of Swiss watchmaking by measuring, certifying and celebrating precision.
SAS accreditation is a guarantee of the quality, consistency and neutrality of the measurements performed. The COSC's independence is a key factor in its rigor and credibility.
SAS Accreditation
COSC has been accredited for twenty years as a calibration laboratory (17025: SCS 00063), testing laboratory (17025: STS0626) and product certification body (17065: SCESp 0125) by the Swiss Accreditation Service SAS.
SAS accreditation formally recognizes COSC's technical and organizational competence to perform a defined service.


