 The same year, French jeweller Cartier, one of Jaeger's clients, signed a contract with the Parisian watchmaker under which all Jaeger movements for a period of fifteen years would be exclusive to Cartier.The movements were produced by LeCoultre.Edmond Jaeger also acquired the patent for the atmospherically driven clock "Atmos" from its inventor Jean-Léon Reutter and licensed it to LeCoultre from 1936 for France, and in 1937 for Switzerland.