TAG Heuer Calibre S is an electro-mechanical chronograph movement by TAG Heuer.

This movement links mechanical and quartz technology. It can measure and indicate hundredths of a second. The caliber S consists of 230 components and 5 bidirectional micromotors.

The indication runs in either watch or in Chrono mode

• In the first, the watch mode is a retrograde date with perpetual calendar until 2099.
• In the second, the Chrono mode, hundredths of seconds are measured. Measurement of single and split times and two times in rapid succession is possible.

Used, inter alia in these models

• TAG Heuer Link Calibre S Chronograph
• TAG Heuer Aquaracer Calibre S
• TAG Heuer Aquaracer Calibre S Regatta
• TAG Heuer SLR Calibre S Laptimer Chronograph