For the first time ever, a watch adjusts to the time zone as soon as you get off the plane. The Seiko Astron has the ability to sync with GPS satellites and runs on built-in solar cells. No changing batteries; no changing time. [From $2,300; seikowatches.com]
Gear of the Year
The best tools, tech, and toys of 2013.
Plus: Lance Armstrong's Downfall
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