Kisai Optical Illusion LCD Watch

Once again I've found another strange watch. This is called the Kisai Optical Illusion LCD watch. It shows a whole bunch of wavy lines so you have to unfocus your eyes so you can see the hidden picture (aka what time it is). If you are unable to figure out what time it is, either look at a clock or another watch or touch the screen and they wavy lines will disappear revealing the image. You can buy one here:
http://www.tokyoflash.com/en/watches/kisai/optical_illusion/