Take a walk down Oxford Street this weekend and you might just see a crowd of people standing by Selfridges' window wearing paper watches. But don't worry, you haven't missed out on the latest fashion fad, you'll have stumbled across Tissot's augmented reality promotion for its T-Touch watch collection.

By slipping on one of the paper watches you can try on any of the 28 different watches, augmented reality style. You can even play around with some of the functions including the dive features of the Sea Touch  and the altimeter, meteo, compass and thermometer of the wider ranges.

There's also a chance you could win one of the watches - one will be given away each day during the two week promotional period.

If you don't live in London, or even if you do live in London but you can't be bothered to go down to Oxford Street to try it out, you can have a go at home using any PC with a webcam. Simply download the software from here, print and cut out you paper watch and away you go.

Choose the most expensive model and you can pretend that you're rich and successful rather than being broke and the owner of a paper cut-out watch.