The most accurate watch at the 2013 Geneva Watch Fair is the Jaeger-LeCoultre Travel Time Watch

 This is the first World Time watch to precisely adjust the travel time zone to minutes. The Duo-Wing double-wing system is divided into two sets of independent mechanical devices, which are connected by the same adjustment mechanism, and display the local time and the time in the second time zone. The small dial at 2 o’clock is equipped with the hour and minute hands, while the small dial at 10 o’clock is equipped with the hour and minute hands showing the world time. The day and night display and the hour dial are set at 6 o’clock. The only crown adjusts the travel time in the first position, the local time in the second position, and the watch can be wound in the zero position.