Developed by the Manufacture Jaeger-LeCoultre, the groundbreaking the Reverso Répétition Minutes à Rideau, invents a new movement, a new way of seeing and feeling… The Salon International de la Haute Horlogerie, was the setting for Jaeger-LeCoultre to unveil its new watchmaking masterpiece: the first watch with four faces, using a pivoting curtain which masks one dial while revealing the other in alternation.