The perfect watch for such people is Tokyoflash's latest Heko. The Heko watch features three rows of four LEDs aligned in special way and each combination of light positions represents current time.
Of course, you will get a special handbook with this watch so you can learn how to read the time.
The watch itself has been made from solid stainless steel and weights about 140 grams.
You can get it right now in Japan for 9,800 yen, or about $109 dollars and even choose white, blue or multi-colored LEDs.