The Highlife collection is based on certain fundamentals acquired from Frederique Constants lengthy experience, which have been revised and improved: a new case design, interchangeable straps and a delicate globe decoration on the dial that can be admired down to the smallest detail thanks to the sapphire crystal, which benefits from an anti-reflective treatment on both sides. Distinctive qualities common to all the models help propel the Highlife towards new horizons. Rarely are watches certified by the COSC (Official Swiss Chronometer Testing Institute). This certificate is only issued to pieces that can guarantee perfect isochronism over a given time and at given positionsin effect, their ability to tell the time correctly, consistently and precisely, within the strict limits enforced by an ISO standard. The COSC is an independent Swiss organisation that only issues its chronometer certificates to these pieces after the watches have undergone numerous tests over several days. CO