Movement stops Working when upside down

[noamshn]

Hello there,
Im pretty new to watchmaking but I already repaired Some automatic watches With Easy problems.
Now I bought this Armani automatic watch:

https://www.neimanmarcus.com/en-il/...eton-leather-watch-black-jewelry-prod91750061

I couldnt upload My photo so I found link in the Internet of the watch.

The problem: the movement stops Working when the watch is upside down.

I would be glad if someone Can tell Me What Can cause this problem.

Thank you in advance

 

[BLK.W.EXPRESS]

Sounds like the pinion on the top of the balance is broken, take out the balance and have a check

Sent from my SM-G955F using Tapatalk

 

[noamshn]

I will check That. Do you know how Can I check What movement It has?

 

[KJ2020]

I will check That. Do you know how Can I check What movement It has?

Open the back and post 2 pics with the rotor on opposite sides

 

[Rx4Time]

Since it's a skeleton watch it might also have a clear case back? If so see if you can get pictures of the movement as state above.

 

[Andrew0]

What I can find the model of the watch is AR4629 and the movement is a Seagull ST16 with a less elaborate rotor.