AP Royal Oak Chrono A-7750 sec@12

[ottto]

I bought the AP Royal Oak Chronograph SS / SS Black A-7750 sec @ 12 on the Perfect Clones. I have a problem! Watches are functional only when it is manually stretched. When it is put in my Watchwinder or worn on your hands after time stops. Thanks for the advice.

[Pitter]

I have a gen sinn with 7750 and it does not wind...others non 7750 - e.g. Eta do

[drury]

I bought the AP Royal Oak Chronograph SS / SS Black A-7750 sec @ 12 on the Perfect Clones. I have a problem! Watches are functional only when it is manually stretched. When it is put in my Watchwinder or worn on your hands after time stops. Thanks for the advice.

Sounds like you might need a service.

@Pitter: If your watch has a gen 7750 and doesn't autowind, then it's broken. You could have a 7760 (I think Sinn used those quite a bit)' which is a manual wind movement.

[997 s]

Contact your seller and check if they can send a new one...

How is the dealer?

This model shuld autowind

[hiker01]

Did you just purchase it, then request a replacement, otherwise, it needs service!

[Watchmeister]

Sounds like your rotor (okay, oscillating weight) has disconnected or the rotor bearing is all gummed up. It is a relatively easy fix for a watchsmith. Watches have to come to me that way before.

[Abner89798]

Do not repair it yourself, just change one or have it repaired in professional institute.