I own a ~1973 Sub300T Sharkhunter (US Divers logo) that I am interested in selling on ebay, but I'm curious what the current market is for these watches. I have owned the watch from new. It is in good shape and working, but it is not mint (no box or manual either as with the one posted by Dr. Miller). It is however unusual in that it is a silver-faced sharkhunter. It is currently fitted with a modern Doxa rice-bead type bracelet although I still have the original rice-bead bracelet (it's not useable, and I'm not sure if it's fixable). Any guidance would be greatly appreciated.