马丁的入门型号，两个系列都是：特别特别小的旅行单板琴，比较适合小朋友或者是经常走动的朋友。 Looking at my source for this watch I doubt this watch has had any modification. Observe the original scenario can be marked Rolex. It's not the very first seven-jewel Rolex that I've heard about. I also work