I like Casio Waveceptors, but mine may have died last week. It stopped working and the battery indicator says it's out of juice. It's solar powered, so I've been leaving it out to charge, but the days have been very overcast of late, so I'm not sure if it's just not getting enough light, or if my battery needs to be replaced, or if it's worse than that.

When I got it, the technology was fairly new, and the model I bought was only available in Japan (gotta love that whole Internet thing) -- I paid nearly $400 for it, but could get a newer model with similar (if not better) features for less than half that now. Still, I've got history with it and hope it'll either recharge or be fixable. It synchronizes with the Ft Collins atomic clock every night, so I always know my time's correct, and it's nice to have a watch that automatically adjusts for daylight savings time.