I saw the Apsiral clock on a programme about small businesses today and thought it would fit pretty well on Forever Geek.

We’ve covered a range of cool watches here, but when you need something a lot bigger for your wall, but a normal clock won’t cut it, the Aspiral could be the timepiece for you.

This kinetic energy clock is a bit of an investment, coming in at £350 ($500). 35cms (14 inches) in diameter and available in a range of colours, it represents three years work by Will Aspinall and Neil Lambeth.

It’s very easy to tell the time (at least to the nearest fifteen minutes). A single ball marks the time on a spiral index of the hours. As you’d expect, the markings get closer together towards the centre of the spiral. At 12 o’clock (midnight or midday) the ball drops down a channel at the back of the clock and begins again at the bottom.

The initial prototype was built out of beer cans and other scrap, and was a far cry from this polished product, which is hand built to order in London.

If you want one, you can order it from Aspiral Clocks.