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Emile Chouriet's in-house movement

The automatic mechanical movement independently developed and manufactured by Emile Chouriet was certified by the Official Swiss Chronometer Testing Institute (COSC) in 2017. With a diameter of 8¾''' and long power reserve, it consists of 137 components, constructed with a precision escapement mechanism and a balance wheel and hairspring system that showcases the beauty of its mechanics in every detail.

COSC Swiss Certification

COSC inspects 1.8 million mechanical and quartz movements each year. COSC is the only organization in the world that is capable of testing such a large volume of watches. Each certified watch is unique, with a code engraved on the movement as well as a code issued by COSC.


Emile Chouriet's EC5318's high-class movement earned the COSC certification in 2017.


Emile Chouriet

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