I just bought an Accutron 2182 for a song. It had an old Union Carbide 343 battery that fortunately did not leak. I replaced it with a new 1.55v silver battery that I had on hand. The 218 started right up but it runs very fast on the order of an HOUR per day. I wouldn't think that the increase in peak voltage would make a difference since some people recommend a 344 battery and the watch has to regulate the voltage anyway. I think that the regulation only allows for slight adjustments to the 218, certainly not an hour a day. I am brand new to Accutron watches. Any thoughts?