Watch Market Review
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Hours & Minutes

Luminox Advt.
Our Vision - December 2017

Within Watches



Contrôle Official Suisse de Chronomètres (COSC)

This non-profit organisation was established in 1973 in Switzerland. The COSC’s standards have been set by international agreement, which makes them the same whether they are ISO (International Organization for Standardization) or DIN (Deutsche Industry norm) standards. COSC’s impressive equipment ensures standardised testing. The results issued by this external and bias-free entity offers a lot of credibility. Indeed, for precision instruments, verification is important. An officially certified COSC chronometer can be identified by a serial number engraved on its movement, as well as a certificate provided by the institute. COSC also has its own standard for testing quartz chronometers.

Poinçon de Genève or the Geneva Seal

Here is another stringent certification and it is often called the ultimate certification of quality in Fine Watchmaking. It is also a very old certification that has kept up to the changing times. This certification is certified by an independent private foundation – TIMELAB, the foundation of the Geneva Laboratory of Horology and Micro-engineering. To receive the seal, a movement must meet 12 criteria related to the quality of the movement’s finishing and the materials from which it is made. It must also have been manufactured in the canton of Geneva. The seal, which consists of the Geneva coat of arms, is stamped on the movement. Any watch that has been certified by The Geneva Seal receives a unique key or code that can be used by any watch buyer to check the authenticity of the certification. Among the Geneva watchmakers who regularly submit their movements for the Geneva Seal certification are: Cartier, Chopard, Roger Dubuis, Vacheron & Constantin, and Ateliers deMonaco.

The complete interview is in Hours & Minutes on pg no. 13 in the December 2017 edition.