I'm a big fan of crazy watches, especially ones that provide a little challenge in terms of telling time. The futuristic-looking Scope watch from Japan features a scanner that homes in on the correct time--the vertical line represents the hour, the horizontal line the minutes in increments of five. In order to figure out the exact minutes, you then have to add the number of red LEDs that are lit up on the right. So, for instance, if the intersecting lines indicate that it's 5:35, and four LEDs are lit up, then the time is really 5:39. Cool. Tells time and doubles as a math aid to boot.