Column wheel design for supple smooth control of chronograph start/stop and reset functions; vertical clutch actuation of the chronograph for flawless, jump-free starting and stopping; flyback capability, which, with a single push of the return to zero button automatically stops the chronograph, resets it to zero and restarts.

Anti-magnetic case.
Established in 1735 by its founder Jehan-Jacques Blancpain, this master watch manufacturer is renowned for its horological complications. The company is also well-known for its Fifty-Fathoms watch, selected by the US Navy and worn by Jacques Cousteau in his award winning film. In 1984, Blancpain launched the world's smallest movement, followed shortly thereafter in 1989 by the launch of the world's thinnest movement.