Urwerk is a Swiss watchmaker known for its eclectic and ambitious creations. The latest is the space-age UR-100 GunMetal. It pays tribute to earlier Urwerk models as well as referencing a 19th-century pendulum clock owned by the designer’s father—an antique clock that didn’t tell time but calculated the distance the Earth rotates on its axis at the equator in kilometers, through a retrograde display. This stunningly intricate display makes up the dial and features a wandering hour system that’s surprisingly easy to read. This 41mm automatic is powered by a caliber 12.01 movement. Only 25 watches will be produced.