Panerai Radiomir 1940 Oro Rosso watch PAM00398 with red gold case and brown dial. Panerai is using 5NPt red gold, this special alloy contains an extremely high proportion of copper (24.1%), make the color even more depth. In addition, it contains 0.4% platinum to help prevent metal oxidation. Related Panerai Radiomir replica watches. Refined, simple