If the back of your watch isn't already a bit loose and easy to remove, this device won't get it done either. I was useless, the only thing in the kit that might be useful was all the pins for different size watches, and I didn't need that, I needed something to remove the battery. Took my watch to a watch repair shope and let htem to it for $15.00. If you manage to get a older watch back off, this may be useful.