Edouard Heuer founded his watch shop in Saint-Imier, Switzerland in 1860. In 1864 business has flourished, and Edouard Heuer moved his shop to the Bienne. Five years later, in 1869 Edouard Heuer had made a patent for a winder watch with autonomous screwing down-crown. In 1880 Heuer was the world first watchmaker that created a into mass production of chronographs and watches. 12 years later Edouard Heuer dies leaving a huge fortune nad two sons. Jules and Charles, the Heuer's sons were leading family business. ten years later they created a doctor's chronograph with a scale for measuring pulse rate. in 1911 the firm put its first car chronograph on the market. Now the company was a pure success. 19 years later Heuer patented first water resistant watch case and launched the world-famous Monza line. During the world war 2 tag heuer was producing military chronographs for the army. After the war Heuer launch the first Carrera chronograph.