A wristwatch isn't just an implement for telling time; it's a fashion accessory, one that needs to be swapped out depending on the occasion, or something as capricious as one's mood. That's where newcomer Covair comes in, who's developed a watch -- also called the Covair -- that can be fitted with different dials and straps without using any tools. The insert pops in and out with ease, but once locked in, stays secure using a combination of strategically placed magnets and an O-ring. Swapping out straps is similarly hassle-free, with quick-change clips allowing you to go from a leather band to a stainless steel bracelet in just a few seconds. Go to Covair's Kickstarter page to find out more.