I would like to add a Polerouter to the collection, but have the hardest time grading the Ebay material for originality. It would be instructive if some nice originals showed up in this thread along with some expert commentary.
It's very difficult to be certain based on these photos as they are fairly low res and also a bit out of focus. It is quite uncommon to see "Microtor" but not "Automatic" although I don't think it's unprecedented. Much more common to see both with a Cal 215 or just "Automatic" with later movements. Can I just about see "Swiss" at the very bottom of the dial? I presume the case reference is 10357/2. There is a far more convincing example on eBay currently. As you can see, the cross hair printing is quite different. I'm not yet saying for certain it is a redial but I am suspicious.
I'm always happy to comment on specific examples as will many other contributors here. There is an excellent photo reference gallery here too https://universalgenevepolerouter.com/referencegallery/