Region numbers?

[Xarok]

Hello

I'm looking at getting a 1st gen Surface Pro from ebay for around ?400. There are a couple with different "part numbers":
J6X-00012
9UR-00012
Just wondering which one to go for as I am from the UK and what the differences will be? Will there still be the 1 year Microsoft warranty I wonder?

http://www.amazon.co.uk/gp/product/...ag=hawk-future-21&ascsubtag=UUwpUvbUpU2673649

Thanks