First of all, it used some kind of PVC.  The product description is inaccurate.  Secondly, it does not come with any paper or info where it was made and most importantly nothing about warranty.  My husband's watch is 44mm.  It has no problem to turn but it is squashed with another 40mm watch next to it.

Update:I tried all the settings but it does not keep my Breitling Superocean 44 watch running.  I don't think it has anything to do with this winder.  It is a Breitling design issue.

I had an email from the seller saying that they will stand behind this product by providing a one-year warranty.