Short for “Atomic Master Clock”, the Urwerk AMC is a 21st century reinterpretation of the Sympathique built by Swiss watchmaker Abraham-Louis Breguet in 1793.

The solid aluminium 35-kilo master clock will rewind the URWERK wristwatch to 80 hours power reserve, set it to the correct time and if necessary adjust its rate. The watch is a novel construction and is specifically designed for the AMC project. It includes typical URWERK features such as the power reserve indicator and two stacked barrels for a power reserve of four days. But the most ingenious features, through unseen to the unaided eye, are revealed upon close examination of the movement. The watch was designed to fit on and work with its base.