Sixties Blocks op art wall clock
Probably not the classiest clock on the market, but this Sixties Blocks op art wall clock could well fit the bill if you're going for a black and white look.
Made by NeXtime, it's got a 17-inch diameter, with monochromatic graphics printed on a glass dial and metal hands for the time. The design itself mixes dots with shapes, but I can't help but think that a dotted theme throughout would have been more eye-catching.
If you like it, you can pick one up for £29.99.