Frederique Constant Watch Highlife Automatic COSC FC-303S4NH6. Frederique Constant watches evoke a deep interest in beautifully decorated masterpieces by employing standards of precision and careful attention to detail to each of their unique creations. Particular emphasis is applied to the execution of their minimalistic designs such as the Slimline collection which carries a distinctive modern twist, allowing the watches to remain timeless. Frederique Constant watches marry a sense of sophistication with a timeless ease.