Math geeks see the world differently, that is why they need the Prime Time Watch. Where a regular person sees a 6-pack of beer , a math geek sees a 2+22 -pack of beer. Instead of ordering a dozen donuts, a math geek might ask for √144 donuts - or maybe just a slice of Π. Rather than have the same boring numbers as any other watch, the Prime Time Watch only uses prime numbers to express the time. Naturally, 2, 3, 5, 7, and 11 remain untouched because they are already prime. But for the numbers 4, 6, 8, 9, 10, and 12, the watch really gets imaginative. The nine, for instance, is expressed 32 and the twelve is displayed 223. We would love tell you more about this cool watch, but it's a quarter to 2•3 and it's time for dinner. Face is approximately 1 5/16 inches in diameter. 9 inches long, Widest point of band is 3/4 inches. 1 year warranty. Japanese, quartz movement.