The Seiko watch company has a compelling story behind their latest watch the Seiko Spring Drive Spacewalk launched at Baselworld. The watch has been engineered to withstand the extreme environment of outer space and will be worn on the wrist of Richard Garriott, the sixth private-citizen space explorer, when he takes his trip this fall. Garriott, a video game designer and the son of a NASA astronaut, will pay $45 million for his trip and plant to viisit the International Space Station and become the first private citizen to do a space walk outside of it. He will be wearing the Seiko Spring Drive Spacewalk outside of his spacesuit and so the watch has to be able to survive zero gravity and an environment where temperatures can get as low as negative 22 degrees Celsius. Battery-powered watches aren't viable for space and the spring drive was chosen over a mechanical watch for safety and accuracy. The watch was designed to be light and recesses on the sides of the case save weight. It also has a dial with a Lumibrite treatment for readability. The case is air tight and made of high-intensity titanium. The watch is a limited edition of 100, three will go with Garriott on his October adventure and the other 97 will be available in December and will retail for $25,000.