A ticking masterpiece made up of cogs, bolts, copper, and brass. In 1953, the Clockmaker begins building the machine according to Claudia Tiedemann’s plans. In 1986, he completes it.
The Clockmaker only understands how to activate it when the Stranger brings his own version of the apparatus to him for repair. With the help of Ulrich’s smartphone, which he left in his workshop by mistake 33 years earlier, and the radioactive isotope Cs-137, the Clockmaker is able to set the machine running.