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When I wind my 5270 at the same time everyday (usually in the morning), it takes me around 30 turns to fully wind up.

 

If I wind it from a fully un-wound status, it will take 60-70 turns.

Will feel a very definite resistance when the watch is fully wound up, then stop winding. 
Unlike the 5170, 5270 does not have the dynamometric winding crown function when reaching the fully wound state.
Due to the worry of damaging the crown clicking system, I never tried to to unwind the crown after fully wound up,

Best, Henry

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