Speedy chrono issue

Hi guys, so last week I purchased a preowned Speedy Moonwatch (previous model to brand new one) and there was a chronograph issue - The minute counter hand would click over on ‘59 seconds..Thought this was a one off issue with hand alignment or something like that (by comparison, my 55 year old 321 speedy’s chrono minute hand clicks over at exactly’60seconds as it should...)
Anyway, fast forward a week, the Speedy was flipped, and today I got a preowned brand new Speedy moon watch master chronometer..And guess what?? The chrono minute hand clicks over at ‘59seconds!!! What’s going on?? Anyone else with this issue??

Thanks for that link..Unbelievable that one spends £5700 on a brand new chronograph and it mis registers timing by a second..In F1 that is a massive amount of time!

I was hoping for a video of you doing the actual adjustment!