Want to be "green" and save money: buy a solar powered watch. There are not many to choose from, but I've found one that is great looking for men and women, and is totally solar powered and your battery will never need replacing.
The new Eco-Drive Watch from Citizen looks like a traditional round faced watch with large, clear numbers in black in something resembling Times Roman font. It features a second hand and a date window on the white face. A stainless steel case wraps around the watch face, and it comes with a black leather strap. After eleven hours of exposure to lamp light or sun, the watch is charged for 180 days. The watch retails for $165. and can be seen on citizenwatch.com.
Want to really be green? Trade the leather band in for a fabric strap, and you'll be 100% solar powered and eco-friendly.