The just announced timepiece is comprised of four 2-micron thin belts each operated by an individual microstep electric motor. An optical recognition system tracks the the status of each belt at all times to ensure extreme precision. The tiny motors are powered by a lithium polymer rechargeable cell that holds enough power to keep the Thread 1 active for two weeks at a time.
“A rechargeable battery for a watch” you ask? Indeed, but not just any rechargeable battery. The box of the Thread 1 features integrated wireless technology, meaning there are no chords required. Yes, wireless battery charging.
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[Read the rest; http://www.hodinkee.com/blog/2010/4/19/the-devon-works-tread-1-space-aged-bullet-proof-haute-horolo.html%5D
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