TH20-01

The Swiss-made TAG Heuer Calibre TH20-01 is an integrated automatic chronograph, evolving from the Calibre Heuer 02 to improve efficiency and stability. It features an 80-hour power reserve, a 28,800 vph frequency, and a bidirectional winding rotor, with chronograph functions managed by a column wheel and vertical clutch. This movement powers central chronograph seconds, 30-minute and 12-hour counters, and running seconds, all visible through a skeletonised caseback.