Price is for supply by Amazon. This will be genuine UK stock with a Nikon Warranty. This means that you will also be able to claim the £20 cashback from Nikon (http://www.nikon.co.uk/sites/promotions/christmas-cashback/products_uk.html).
There are cheaper sellers (eg £112.90 from expeditelectronics through Amazon) but these will be Grey Imports and therefore do not qualify for the cashback and come without a UK warranty.
If the warranty is important to you, make sure you select Amazon as the supplier and not one of the cheaper sellers.