RickFlorida Posted March 25, 2019 Report Share Posted March 25, 2019 My build is fighting me all the way to the finish. Now that I have my RoloJack shaped cartel 5513 case all shaped and ready for me to do some final assembly, my case and caseback threads need repair. What is the thread/pitch of the midcase and caseback on Joshua/Cartel 5513's? It's from 2 or 3 years ago. Even if my case was not shaped by RoloJack I can't just buy a new Cartel 5513 Case because I heard they no longer have genuine specs. Is the Cartel Case threaded the same as Rolex 5513 but even if it is, I don't know what that thread/pitch is or how to fix it. Does anyone machine fix these? Thanks Quote Link to comment Share on other sites More sharing options...
RickFlorida Posted March 26, 2019 Author Report Share Posted March 26, 2019 I bought a new caseback so once I get that in my hands, I will see if that does the trick. After 50 plus years of the 30.9mm diameter case thread production, I'm betting that a "threadchaser" was made for watchmakers to clean up (re-align the threads) of cases. Am I correct about this? When you look up metric thread sizes, I only see a 31.5mm thread. So 30.9mm threads on rolex cases might be a Swiss specific watch thread or perhaps French like the lignes? Quote Link to comment Share on other sites More sharing options...
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