Ask the seller in a PM what the first digit of the serial number is.
Here is a list of regional first digit codes for Nikon serial numbers:
2 - Japan 3 - USA 4 - Europe (excluding UK) 5 - Canada 6 - Australia / New Zealand(?) 7 - Asia (excluding Japan) 8 - UK
Anything other than a "3" will mean it is not an authorized import and will not be covered or even repaired by Nikon USA. Nikon Inc. handles warranty for South American and Caribbean also for cameras but not for lenses or speedlights. All my Nikon gear is US, although I don't live there now, because its cheaper there and the service is fast enough. My Sigma gear(lens speedlights) are Russian authorized imports because their Moscow warranty service is fast and pretty good. Stan St Petersburg Russia