First time poster here! My dad gave me a watch today which he had kept in his safety deposit box for many years and after a bit of research discovered that it is a 1967 Seiko World time. After discovering that it is a very collectible piece I have been trying to learn as much as I could about it. One of the things i noticed is that it has an embossed logo of the Olympic torch on the back which often wears off after extensive use. I was wondering if there are any ways to help protect the logo and other embossed information from wearing off. I was thinking maybe clear nail polish or a plastic film (maybe the type used for smart phone screens) cut to size. Also, any other information on this watch would be great.. she really is a beauty.