A genuine patent-pending innovation, this dual-chronograph with a differential display is able to time two vehicles separately with, in addition, the option of seeing the difference between the two times being measured simultaneously on the same dial. This innovation represents a major step in the history of the chronograph. It was designed and produced by the master watchmakers from La Fabrique du Temps Louis Vuitton manufacture.
The LV 175 calibre’s operation relies on the use of four different “motors”, three of which are dedicated to the dual-chronograph function.
For a dual-chronograph with a differential display, not one but two column wheels are required for the movement to function correctly. Unique, it has three different levels for each control one of three sizes dedicated to the chronograph function.
This simplicity is also found in the use of the winding crowns, with the one positioned at 2 o’clock serving to set the time and wind the calibre dedicated to it, while the other positioned at 4 o’clock winds the three calibres for the different timing functions.
This is also one of the Twin Chrono Grand Sport’s main characteristics: combining an extremely complex mechanical core with incredibly easy and intuitive use.
The Tambour Twin Chrono Grand Sport owes its simplicity of use to an innovative system making it possible to control all of the timing functions using one and the same mono-pusher located on the middle at 8 o’clock.
To better understand the benefits of these multiple functions, let’s put ourselves in a motor race situation.
First press the mono-pusher when the race begins. Timing begins on the lower two counters.
Press the mono-pusher a second time when the first racing car crosses the finish line. Its race time is displayed in minutes (white hand) and seconds (red hand) on the counter positioned at 8 o’clock, whose hands are frozen. The timing on the counter at 4 o’clock continues and timing on the counter at 12 o’clock begins.
Press the mono-pusher a third time when the second car crosses the finish line. Its race time is displayed on the counter positioned at 4 o’clock and the difference between the two vehicles is displayed in minutes and seconds in the counter at noon. The times are still read intuitively in minutes (white hand) and seconds (red hand).
Press the mono-pusher a fourth time : the counters are reset to zero and the watch is ready to time another race.
Clarity of the information on the watch dial that houses is very important. That's why, the Tambour Twin Chrono Grand Sport is as easy to read as a dashboard. To distinguish the main counter positioned at noon even more easily, the latter has been encircled with a mirror-finish crenelated detail.
