So you think your geek enough? What about geek enough to have a binary watch. The rather geekish chaps over at Tokyo Flash Corp have created a wrist-watch that tells the time in Binary.
The LED watch features ten LED lights that correspond to the time (four for hour and six for the minutes). Adding the value of the light will give you the right time.
Roughly £45 the watch will get those math skills working overtime and give you the feeling of having to learn how to tell the time all over again. Utter madness.