A cleverly designed mechanism lends additional flexibility to this model's foldover clasp: Two small pushbuttons make it possible to extend the buckle by one or more millimetres - ideal for all who wear their watch over a wetsuit or would simply like a little more room around the wrist.
Exact, more exact - chronometer. A chronometer is a watch whose precision has been officially tested and certified by an independent testing laboratory. This Certina model has been tested by the Contrôle officiel suisse des chronomètres (COSC), the official Swiss testing authority, and awarded the quality certificate.
