If you go down to the right and click on the "Used & New (161) from $xx.yy" link, you can see the individual sellers including notes from them about origin and where it ships from.
The bigger problem for some of these is actually going to be with anything "Fulfilled by Amazon" because there's some chance that the products with identical numbers will be mingled in Amazon's warehouses. Never having sold through them, does supposedly-identical stock get mingled like that? I think that was one of the problems people were having with counterfeiting.
Some specify "shipping from Japan", but most don't seem to say "Made in China" or "Made in Japan" (it would be really convenient if they did). I don't think the shipping country necessarily implies the origin of the product, at least, I'd rather not gamble based on that.
It would be nice if every seller specified where their version was made, or really more correctly that the two units would be listed with different SKUs.
For example, I was recently looking at a Hario Buono kettle [1] to make coffee. There are two versions of it, one made in Japan and one made in China. Unfortunately they share the same model number. The Japanese version is considered better quality.
Of course Amazon has the lowest price compared to specialty coffee retailers, but since they don't differentiate between the two origins, it's a gamble. Different third party sellers stock one version or the other. You can see in the reviews that people have received both. Without the reviews being tied to a particular seller, it's hard to say what you'll get, so I'll end up buying from somewhere else instead.
[1]: https://www.amazon.com/Hario-VKB-120HSVV60-Buono-Pouring-Ket...