The 5513 And Connery’s 6538 are associated by lineage and they are superficially really very similar, but to an aficionado, you will find variations. For one particular, the 5513 was by no means CSOC Qualified, which implies it didn’t officially qualify as obtaining Swiss timekeeping precision and accuracy. Picture Credit https://www.watchesworld.com/from-sean-to-daniel-tracing-the-evolution-of-james-bonds-iconic-watch-collection/