The A7750 Rotors

[geestyleed]

Hi guys!.

Just a short question. After I haven been searching in the forum I haven't found a good answer.

I have three watches with a A7750 mvt(Hublot BigBang, Chopard GTXXL and Porsche Flat6). The rotor of the Hublot and the Porsche is often spinning so fast that I think that this cannot be good for the movement.

Does anybody know if that can damage the movement? I'm a bit worried....

As a little example the vids of Mr. Jones:

First

2nd

Regards,Gee

[freddy333]

Spinning fast due to inertia is normal on a 7750, but if the rotor spins when the watch is manually wound, then the movement requires servicing.

[geestyleed]

Ah OK thanks! The rotor doesnt spin when manually wound via the crown.

[Toadtorrent]

Ah OK thanks! The rotor doesnt spin when manually wound via the crown.

You can read the threads on the noisy rotor linked in my Noob Guide linked in my signature for more details...and so you don't feel alone.

[Shundi]

I recall The Zigmeister stating somewhere that the rotor cannot spin fast enough to damage/stress the click wheels the way manual winding can on a poorly serviced movement. As Freddy stated: the watch should be fine- especially if the rotor isn't spining while you manually wind the watch.