
The TAG Heuer Calibre TH20-04 is an automatic chronograph featuring an integrated mechanical tide indicator for the Carrera Chronograph Seafarer. Based on the TH20 architecture, it offers an 80-hour power reserve, column wheel control, and a vertical clutch. A dedicated pusher at 9 o'clock synchronizes the tide disc to a 29.53125-day lunar cycle, displaying high and low tide phases.