Rolex Submariner 5513 Gilt Underline White Swiss Only Dial 1963An important white SWISS onlyThis is a very rare and interesting vintage Sub and like with all things vintage Rolex, its all in the details. This watch house a nice dial that is still glossy with few spiders in the lacquer. The dial feature two important features an underline and the word SWISS only on the bottom edge. The underline mark was used to signify lesser radioactivity in the luminous mixture on the hour plots, following the outlawing of