Dubois Dépraz DD 540

The DD 540 is Dubois Dépraz's first fully integrated chronograph movement, launched 50 years after the Calibre 11. Features column-wheel control, horizontal clutch (traditional solution), and flyback function. Concentric 12-hour and 60-minute counters at 3:00, small seconds at 9:00, instantaneous big date, and central power reserve indicator. The movement has 403 pieces assembled into 156 components. Shock protection rated to 1,500G. Extensively tested with over 6,000 start/stop activations and 3,000 flyback operations during development. Can be configured for COSC certification.