The Men's Highlife Automatic timepieces have been designed for everyday use and come in several dial and case variations. This model features a brushed and polished rose gold and stainless steel 41mm 3-part case, darkdial with rose gold applied indexes, and hand-polished rose gold plated hands. 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 positions - in 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. COSC certified pieces form an elite, a class of their own, intended for collectors for whom "Swiss precision" is an everyday necessity. The Highlife Automatic COSC was developed especially for them. 41mm Stainless Steel Case Movement: Automatic Band Color: Two-Tone Rose Gold-Tone Stainless Steel Bracelet Swiss made Watch glass/crystal: Sapphire Glass Frederique Constant Style #: FC-303C4NH2B 41mm Stainless Steel Case Movement: Automatic Band Color: Two-Tone Rose Gold-Tone Stainless Steel Bracelet Swiss made Watch glass/crystal: Sapphire Glass Frederique Constant Style #: FC-303C4NH2B.