Long Version: TAG HEUER WATCHES - Chronographs explained by Jeff Kingston

“What is a chronograph watch and how does it work?”

Eduard Heuer was the inventor of the oscillating pinion. This is a key component in the construction of many chronograph movements and, in particular, is the component that lies at the center of the system for starting and stopping of the chronograph.

We sit with one of the movement designers of this year’s TAG Heuer 01 chronograph in TAG HEUER’s headquarters in La Chaux-de-Fonds and he will show us how chronographs start and stop, leading us through the chain of events from the moment the chronograph start button is pushed, through the turning of the column wheel, to the connecting rockers and finally the change of position of the oscillating pinion.

Then we move to Chevenez, near the French border to observe the assembly of all of these components into a movement. This gives us a view of many components that are otherwise covered by one of bridges of the finished TAG Heuer watch.