Just bought DeVille on eBay...afraid I got duped

I've read through many real v. fake and the fishing thread...and I still can't tell if this is a fake or a redial. Hoping for a little help from those more experienced. Unfortunately, I already bought this watch. When I received it, it has a plastic dial cover that spins around, isn't sealed and is very cheap-seeming, so I'm pretty disappointed. It also stopped working, and will start again when held in certain positions. Not sure if this is fixable or not. I haven't taken it to a professional because I'm still hoping to return it, but if it's worth holding onto I will definitely take it to a pro. Any help is much appreciated. I'm also wondering if the case back is original? It looks weird because it's a different color. I'm having a hard time finding that information online.

Original listing: https://www.ebay.com/itm/205157290979

Here ya go op, two dial shots from the link, they are screen shots.

Thanks for the help, everyone! Realized the ref number is 162.046, not 045. Watchcharts.com shows the average value at about $710, which is close to what I paid. Not sure if this is a reliable reference, or if it's based on a watch with all-original parts. Either way, appreciate the insight and will certainly be more conscientious next time.