I have what I believe to be an original Tornek-Rayville Fifty Fathoms military issued wristwatch. It has been refaced (so i've been told by another enthusiast that says this type of thing happens) sometime during it's service to our country. It is still on the original military issue band. It runs (starts & stops after a few minutes) and I am wondering what it would take to get it repaired/cleaned, etc. I am not sure if I want to keep it or sell it. I have had many offers for it, but haven't parted with it yet. I have owned it since the 1970's. My dad was in the Navy. Its serial number is #0445. What can you tell me?