Designers are trying to come up with environmental-friendly versions of all sorts of gadgets right now. While most folks rely on solar power to keep the devices juiced, Julien Moise - a designer from France has decided to harness the power of the wind instead with his concept wind energy watch.

The Eole watch is a timepiece works under the user’s own breath power. The delicate rotating bit moves with nothing more than a gentle puff of air from the wearer’s lungs.

Also see: iFan: Charge your iPhone with Wind 

While the watch’s parts are sitting still the display is blank. But when the wearer exhales, the tiny rotor turns and enough electricity is generated to turn on the delicate-looking display for a moment, giving you just enough time to see whether you’re late for that appointment.