Frederique Constant Watch Highlife Chronograph Automatic FC-391B4NH6B. Frederique Constant launched the first models of its Highlife collection over 20 years ago.Their unique design was characterised by the special strap built into the case. In 2020, the Brand has updated the ingenious concept and reinvigorated the historical collection by adding three new models: the Highlife Perpetual Calendar Manufacture, Highlife Heart Beat and Highlife Automatic COSC. Male. Frederique Constant