TAG Heuer Micrograph Formula One. The Microtimer- First Swiss made movement to 1/1000th of a second: Sports chronograph fitted with the first Swiss 1/1000th of a second precision movement. TAG Heuer F1 Microtimer Features a F1 mode with lap-time memory and best lap calculation, or dual time-zone display, traditional chronograph with additional and split times and a stand by mode, Swiss made precision movement TAG Heuer Kirium Microtimer CS111C.FT6003 