Tag Heuer's high-end concept chronograph is so precise, blink and you'll miss it -- literally. The Mikrotimer Flying 1000's watch movement runs at 500Hz. Compare that to other high-end chronos plodding along at 5Hz, and you start to see the sort of power and precision Team Tag are working with -- this mesmerizing piece of wrist jewelry is capable of banging out 3.6 million beats per hour. Initially planned as a one-off, the concept watch will now go on sale for a lucky few timepiece obsessives. B