Experiment ZR012 is the Wankel engine of watches

A simple set of rotating hands or LCD digits may be the most recognizable, but horologists always like to find new ways of displaying the hours, minutes and seconds of the day. Inspired by the Wankel engine, the Experiment ZR012 watch uses a pair of rotating Reuleaux triangles to indicate the time. The larger rotor points to the hour on the outer border, while the smaller rotor points to the minute.

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