I assume you mean this problem is common in the 7750 movement as well, because for sure the rotor is not supposed to spin madly when you wind it.
The 7750 is a noisy movement when you manually wind it, as well as when wearing it. My ML Pontos S has a solid caseback so I cannot verify whether the rotor spins when I wind it or not.
I know manually wound your automatic movement give you that satisying feel
Yes I see and yes it is a loud movement in general but I am pretty certain you would notice if the rotor was going nuts when you are winding the movement via the crown. My experience with 7750 is that you can basically feel, not only hear, the rotor spinning.
