At the earliest stage Jaeger LeCoultre business produced ebauches for other businesses and then Jaeger le coulter timepieces were the most common designer watches across the globe. This company begun the movements for several businesses dealing in designer watches. Few of them are IWC, Piguet, Audemars, Constantin and Vacheron. With the beginning of Last century in Switzerland, Jaeger le Coutre watches took over as finest wrist watches. The basic motivation for making Jaeger LeCoultre wristwatches was to base all the experience on scientific applications. Jaeger le coultre watches were the most sensational designs when compared to some others in the industry. In 1833 the earliest factory for the production of Jaeger le coultre wrist watches were set up in the town of Le Sentier. Le coultre was believed to be a gifted person in the industry. Jaeger LeCoultre designer watches completely changed the timepiece making industry by the continuing development of millionometer. Millionometer made it possible to measure upto 1000 of a millimeter with preciseness. This resulted in the development of better Jaeger LeCoultre timepieces. With in the short order of time, Jaeger le coultre timepieces captured the maximum stack in the market and were biggest supplier for tools and spares to the watch making industry in Swiss. The activities of Jaeger LeCoultre designer watches were stretched up to 1910, the corporation provided Patek Philippe with raw movements. Almost at the end, Patek Philippe created his own movement, right from scratch. During such course, a few more corporations started growing their business based on Jaeger le coultre wristwatches. The success of Jaeger le coultre wrist watches was remarkable between 1900 and 1919.Jaeger LeCoultre wristwatches had another memorable feature of less weight.