The Sistem51’s assembly revolves around a single screw at the center of the back of the watch and is totally automated. The watch is untouched by human hands during the entire manufacturing process. After it’s put together, the watch’s case is hermetically sealed, making the Sistem51 highly resistant to water, dust, and other foreign materials. Its automatic calibre is made entirely of ARCAP, an alloy of copper, nickel, and zinc — with no iron. This means the watch has exceptional anti-magnetic qualities, removing a potential need for servicing.