The quest for precision has particular significance at Jaeger-LeCoultre, whose very foundations rest on two of Antoine LeCoultre’s inventions: a tool that cut pinion teeth with unprecedented accuracy (1830) and the Milliomometer (1844), the world’s first instrument able to measure a micron.

Within the Manufacture, the search for precision has resulted in the creation of the patented multi-axis Gyrotourbillon, signature hairspring shapes or the Duometre concept.