Hey WUS. As I opened up the fireplace insert remote today to replace the batteries as I do every year, I found that they had leaked which is a B**** because the remote isn't easy to disassemble to clean the terminals and the contact wasn't being made. It made me think about my automatic watch and the fact that there are no batteries, but my G-shock has a battery and I came to think about the fact that perhaps it could leak. And then I thought about something like a quartz TAG or Omega with a battery and could it leak and in effect ruin an "Expensive" watch or are watch batteries better somehow? I guess its the common case of curiosity killing the cat, though no animals were harmed in this question.