From the watch that flew to the moon (Omega Speedmaster), to the smallest caliber with the dimensions of 14 x 4.8 x 3.4 millimeters (Jaeger-LeCoultre Calibre 101), that Elizabeth II. wore as a bracelet watch on her coronation day and the watch model that has been in continuous production for over 100 years (Cartier Tank). Watch expert Gisbert L. Brunner presents 100 extraordinary watch models and explains their history and uniqueness.