Energy-saving watch that is powered entirely by solar light! The Solar OLED Watch crafted using organic light-emitting diodes i.e., OLEDs, the watch is relatively earth-friendly right from its construction. The next step in its Eco-friendliness is, of course, the fact that it bypasses the regular Li-Ion battery in favor of a solar-powered power-up option that ensures that the watch stays powered up without using any chemical batteries. Touch-enabled watch face only activates when the user touches it and shuts down when not in use. Though the function may appear to be of mot much consequence for an individual user, it does become pretty incredible when one considers the amount of energy saved and light pollution prevented with the function if every human being on the planet wore a watch like this!