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1521 Classic COSC Certified

Squale is proud to present the 1521 Classic COSC Certified – the first model in Squale’s history with a Chronometer Certified movement

COSC, - Contrôle Officiel Suisse des Chronomètre - is an independent Swiss organization that certifies chronometers. Founded in 1973 and based in La Chaux-de-Fonds, it’s a not-for-profit organization recognized as serving the public interest, dedicated to Swiss watchmaking only.

The tests performed by the COSC consist of static tests performed in the laboratory. Each individual movement/watch undergoes a battery of tests specific to each of the four types, for several consecutive days, in five positions and at three different temperatures (8°, 23° and 38°C).

Then, for 15 days, the movements undergo daily tests, where they are wound and measured.

The term “chronometer” is assigned to a precision timepiece after passing the tests described above, which determine the average error variation to be between -4 and +6 seconds every 24 hours

The COSC definition of Chronometer is thus synonymous with quality and reliability that is certified by a number engraved on the movement and printed on the certificate issued by the COSC.

COSC, - Contrôle Officiel Suisse des Chronomètre - is an independent Swiss organization that certifies chronometers. Founded in 1973 and based in La Chaux-de-Fonds, it’s a not-for-profit organization recognized as serving the public interest, dedicated to Swiss watchmaking only.

The tests performed by the COSC consist of static tests performed in the laboratory. Each individual movement/watch undergoes a battery of tests specific to each of the four types, for several consecutive days, in five positions and at three different temperatures (8°, 23° and 38°C).

Then, for 15 days, the movements undergo daily tests, where they are wound and measured.

The term “chronometer” is assigned to a precision timepiece after passing the tests described above, which determine the average error variation to be between -4 and +6 seconds every 24 hours.

The COSC definition of Chronometer is thus synonymous with quality and reliability that is certified by a number engraved on the movement and printed on the certificate issued by the COSC.

DIAL & BEZEL IMPROVEMENTS

The 1521 Classic COSC dial features applied indexes, distinguishing it from the printed indexes of the traditional 1521 Classic model. Each index, due to its shiny contour, reflects light in a unique way, perfectly matching the polished case of the watch. 

Another element that sets it apart from the 1521 Classic is the bezel. In fact, the 1521 Classic COSC bezel is made entirely of SuperLuminova to guarantee a superlative performance. This ensures maximum readability even in conditions of minimum visibility. 

The 1521 Classic COSC dial features applied indexes, distinguishing it from the printed indexes of the traditional 1521 Classic model. Each index, due to its shiny contour, reflects light in a unique way, perfectly matching the polished case of the watch. 

Another element that sets it apart from the 1521 Classic is the bezel. In fact, the 1521 Classic COSC bezel is made entirely of SuperLuminova to guarantee a superlative performance. This ensures maximum readability even in conditions of minimum visibility. 

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