I have a Bulova watch that requires movement to stay working. Normally I don't wear the same watch every day, and the watch I have dies if I don't wear it after a few days. I thought this would be a good product to keep it charged, but I was wrong. The device is very flimsy and cheap. On top of this, it didn't charge my watch one bit, clockwise or counter. Maybe it didn't provide enough force but the watch didn't receive any bit of charge after using this, and when I shook the watch using my hands or wore it it charged right up.