The video below shows TAG Heuer’s Mikrotimer Flying 1000 Concept watch in action. This mechanical watch times things to 1/1000th of a second - 300 times faster than a human blink. As the watch spins maniacally, it’s actually meting out 1/1000ths of a second at 500 Hz. That means the small balance wheel inside pops back and forth 3.6 million times an hour - a speed that would shatter many mechanical systems.