I bought my MTG-900 four years ago and it's still going strong. It gets the time every night from Colorado, the battery stays on "full" and this watch is practically indestructible. Even though I'm right-handed, I wear this watch on my right wrist. I work on an assembly line at a manufacturing facility and depending on the job I'm doing, I'll shoot from 1,700 to 6,000 screws each 10-hour shift. I use an air-driven gun and there is a lot of vibration which goes through my hand, wrist and watch. Often, the fingertips on my hand are numb from this vibration, but this watch hasn't even flinched. A competitor claims their watch "takes a licking and keeps on ticking", but no, this is the toughest watch there is.