I have a g-shock rangeman or GW9400-3 in od green that I love. I love it and for the past two years have worn it constantly and taken it places like China, Iceland, Aruba, Virgin Islands, around the US, and Puerto Rico. I love its solar powered and the compass and altimeter on it are pretty close though my barometer seems to not be calibrated and not sure how to recalibrate it. Does anyone know how to recalibrate I don't feel like reading the manual to see if it says anything. I would love some other classic watches but at 15 don't have the money to get many though I have a cool old watch my dad gave me.