This is the first time I have used this forum as I have run out of places I to look for a replacement watch part. I have a Seiko memory bank watch (M354-5000) for about forty years now, it was an anniversary present from my wife, but somehow the battery cover/plug became loose and lost whilst I was wearing it the other week. I've had no problems over the years with the watch but now I cannot use it as the battery does not remain correctly connected without the cover in place!!!. I've tried the local watch repairs and also online but cannot seem to be able to locate one . The watch has great sentimental value and I would therefore like to continue to use it, does anybody know where I might get a replacement cover from. I'll attach a couple of photo's, any help would be greatly appreciated.