SONY ERICSSON XPERIA ARC S BLACK ?

I have for sale a Black Sony Ericsson Xperia Arc S, it is in brilliant condition, no marks on the screen what so ever (I think its scratch resistant) This phone is less than a year old, it was bought on the 19th of October last year. It has also been updated to the newest version of Android. With the phone you will get the original box, charger, hdmi cable, instructions, and the receipt of purchase. I am unsure if it is locked or not because I have always used it on Three. I am looking for 200, to be collected from Rotherham.