Seiko's new Spacewalk watch claims something that many timepieces can't: it's space-proof. What does this mean? It's a scan 92 grams, and waterproof to 100 meters. It's also airtight and has extra-bright luminescent hours and arms. Which would all be great, if there were gravity or oceans in space, or if space-suits had little windows through which one could read a wristwatch. It's being specially designed for Richard Garriott, a video-game mogul who will be traveling to space with the Russian Space Program. Only 100 will be made, which makes sense, because they're sure to be prohibitively expensive.