3861 movement broken? *Update: Read First Post*

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Reviving this thread again, today my 3861 chrono stopped working again within 40 min after the warranty service performed 3 years ago. I must have some bad luck.
 
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Maybe I'm wrong, but reading this 35 pages - thread, one could come to the conclusion that if you’re going for a Speedmaster, it might actually be better to choose the earlier version with the 1861 movement..