I had me a solar watch when I was about 12 years old. Unfortunately, the technology wasn’t far enough along and required constant charging under the sun’s rays. Casio’s newest Pathfinder watch, the PRG110C-3, however, requires only 5 minutes in direct sunlight for a 24 hour charge and when fully juiced can supposedly last up to 5 months. Fittingly the watch is finished in an eye popping shade of green and is made from recycled packaging. Other features include a compass, 200m water resistance, altimeter, barometer, stop watch, alarm and more.
You can grab one now from Amazon for $250.