TAG Heuer caliber Calibre 8

Calibre 8 is a self-winding movement with big date and an additional time zone - the latter displaying both hours and minutes. It is based on either the ETA 2892-A2 with an additional module, or the Soprod SOP9351. The ETA-based version uses 21 jewels, while the complete Soprod movement uses 25 jewels.