
The TAG Heuer Calibre TH80-00 is a COSC-certified automatic chronograph beating at 5Hz (36,000 vph) with 47 jewels and a 70-hour power reserve. It utilizes a TH-Carbonspring oscillator for magnetic resistance and stability, featuring a unique compliant chronograph mechanism with LIGA-produced bistable components for start, stop, and reset functions. The inverted, openworked architecture displays the gear train and balance on the dial side, while the reverse showcases a shield-shaped rotor and checkered-flag finish.