If you enjoy colourful watches a new digital timepiece concept has been created by Ben Pritz called Wryst Variance might be worth a look. The Wryst Variance watch concept allows you to choose the watch face you would like to use allowing you to suit the occasion. In a similar vein to what Apple has allowed you to do with its Nano device and the range of watch faces now available on it.
Pritz has designed the concept to allow the entire face to be removed and attached to straps, keychains, dog tags, or the like and its available in a range of vibrant colours.
Source: Yanko