Hublot has launched a new luxury watch under its Big Bang line that's not quite like any of its other models. You can't pay for it with cash or even an AMEX Black Card -- you can only purchase it online using Bitcoin. It's called the Meca-10 P2P, and it was designed for the cryptocurrency's 10th year anniversary. In fact, Hublot will engrave the unique Bitcoin transaction number you used to pay for the device on the edge of its bezel before shipping it. According to Bloomberg, one Meca-10 P2P will set you back around $25,000, based on the current Bitcoin value.