Is this Omega glass ball mantel clock genuine?

Hi All,

I have an Omega glass ball mantel clock and would like to know if it is genuine or a fake. All the ones I have seen look different to the one I have so I'm hoping mine is the real deal.
It works when I pick it up and then a while later I see it has stopped.
It is very beautifully made and incredibly heavy as I think it is a paper weight?
Hope someone can give me some help on this as I sell for a local charity and can't afford to be seen as dishonest!
sorry - the photos were the right way up when I sent them!

Unfortunately, it is not authentic and is a common counterfeit.