My watch battery finally gave up after many years of recharging. I know many will think you cannot recharge watch a battery, you can if you are very careful and know what you are doing because of the risk of the battery exploding and causing injury. There is a limit how many times you can do this and mine had got to the end. This meant I needed to buy a new one, after searching around I found the renata 395 watch battery at a very reasonable price, in fact because of the price I bought two which should outlast my watch and save the problem of trying to recharge the battery. When I received the batteries I was very pleased they arrived as described in their packing case, meaning the spare will last until needed.