Frédérique Constant CONSTANT-FC-391

The FC-391 is an automatic tri-compax chronograph movement manufactured by Frederique Constant in Switzerland. Operating at 28,800 vph, it delivers a 60-hour power reserve and features 26 jewels with Incabloc shock protection. Based on the La Joux-Perret L110 caliber, it powers the Highlife Chronograph series.