I have the opportunity to purchase a Hamilton masterpiece Thin-o-matic for $200. It's 10k Gold with a sweep center hand....beautiful minute/second markings and is in excellent condition. Does anyone have any experience with these? There is also an older looking Hamilton with a very clean dial (no markings except "Hamilton") and a sub seconds register with tear droped lugs. This is beautiful also for $200. I don't have pics and this all the info I can offer. What does everyone think? Any help is appreciated!!