Heart Beat Automatic FC-310MC5B6

The first Heartbeat timepiece was launched in 1994 and quickly became an iconic signature of the brand. The purpose of the Heart Beat development was to show that these models were mechanical. With this in mind, the company added an aperture at the position of the balance wheel to show the beauty of the mechanical movement, of its “heartbeat”.

Source: Frederique Constant website, last updated Mar 2026