The 5513 And Connery’s 6538 are related by lineage and they are superficially very very similar, but to an aficionado, you will discover dissimilarities. For one particular, the 5513 was in no way CSOC Qualified, meaning it didn’t officially qualify as having Swiss timekeeping precision and accuracy. Picture Credit: Courtesy https://www.watchesworld.com/from-sean-to-daniel-tracing-the-evolution-of-james-bonds-iconic-watch-collection/