Chirac presided over the London operation

In 1907, Cartier signed a contract, Edmond Jaeger, who agreed to complete the changes in the supply of Cartier watches. By this time, Cartier had branches in London, New York and St. Petersburg, and quickly became one of the most successful watch companies in the world. Introducing Baignoire and Tortue models (both of which are still in production today) took place in 1912, followed by the tank model debut in 1917. In 1932, they made the production of waterproof watches, especially for adults Marrakesh.

In 1917, introduced by the new western front in the war machine, most notably Louis Cartier designed the Cartier watches, Cartier tank watch. Also have to survive this trip, there are now more than 30 varieties to make progress.

In early 1920, card to set up a joint venture company, Edward Jaeger (of the plot LeCoultre) solely for the purpose of the production of sports cards. So watch the company in Europe, the birth, although the card to continue to use the great flow of other decision-makers. Cartier watches, with movement from Vacheron Constantin, love, Peter, Movado and LeCoultre. It was also during this period, Cartier began to increase its own reference number of the watch sales, press four-digit code is usually below the ears. In fact, many collectors refuse to accept the card as the original, unless these figures are present.

Chirac presided over the London operation and eventually moved to current address in the new Bond Street.