After looking for a nice looking watch for about a week, I stumbled across this solar Seiko. The watch arrived and it took about three days of 24-hour incandescent light exposure for the watch to start operating as advertised.  Alas, after about four days of cloudy skies in western NY, the watch lost its charge and stopped keeping track of time. While the solar option is novel, it sure isn't a very good source of power in cloudy environments and long sleeve shirts. Why not have a battery backup, or is that too reliable? The watch is being returned, since accurate time is expected when you spend more than $100 for a time piece.