While we doubt that used watch batteries are the most heinous cause of environmental degradation, there is some appeal to Citizen's Eco-Drive solar-powered watches: you never have to worry about replacing a battery again. Of course, if you're trapped in a dimly lit cubicle all day, and still want a zero-pollution watch, you may want to consider a kinetic model instead — though the Eco-Drive does have a power-saving mode that shuts down certain functions (like the second hand) when it's in the dark, and it can also reset itself automatically once you venture out into daylight again.


Citizen's Eco-Drive watch never needs a battery