1887 Tag Heuer : a chronology TAG Heuer patents the oscillating pinion

Major improvement in the chronograph industry: TAG Heuer invented the famous 'oscillating pinion' for mechanical stopwatches. In 1887, the Oscilating Pinion was patented. It is still used to this day by leading manufacturers in sic production of mechanical chronographs and for example in the Calibre 1887, the fourth movement developed and produced in-house by TAG Heuer.