Every five minutes the large minutes snap disc instantaneously rotates. The hours disc does it every 60 minutes and other discs do it at different intervals. At midnight they all do it together. This process requires a significant force in a very short timeframe. Only an important barrel can provide the necessary force and assure a long lasting power reserve. If speed and precision are always seek in horology, large snap discs, powered by such force, cannot be stopped easily.
Exclusivity and elegance comes from precise and smooth movements. That is why at La Vallée we conceived and developed a magnetically controlled speed device which equip the M30TP movement and allows the user to truly appreciate the variation of time.