Clock ring: tiny Casio retro watch coming to U.S. for Christmas

Image: Casio

As spotted in vending machines in Japan, the tiny Casio retro ring watch is coming to America! The Verge's Andrew Liszewski writes that it turned up on the company's U.S. website with a price tag—$120—and a December release date.

We celebrate Casio Watch's 50th anniversary by bringing back the very first ring watch. A whole new style of digit…