The Aero Clock is not just a mechanical 3D wooden model or a nice showpiece. This model from Ugears is a real working clock that you can assemble yourself, mount on the wall and wind up, then watch the seconds, minutes and hours go by. The Aero Clock is an ingenious puzzle and DIY clock movement unlike any other clock. It is a magnificent piece of precise engineering that reveals the workings of a gravity pendulum clock to both modelers and viewers. Like all Ugears models, this one has a touch of playful quirkiness that will captivate and charm the ever-growing number of fans.