Nikon told me to look for an English language manual, or, of course, a receipt. The only thing on the camera that might help you is the serial number, but Nikon declined to look up a serial number when I called.
If memory serves, the country code is on the outside of my D700 boxes - US or USA. And +1 on the English manual. There should also be a USA warranty registration card in the packaging. Read the fine print!
thank you for the replies. I called Nikon USA and with you the serial number the first agent could not help other than to say US serial numbers generally start with 2 or 3. I called a second time with the number and go the run around and was told I'd have to send the camera in to get a positive answer. after expressing my dissatisfaction with the customer service and being on hold the rep attempted to register the number and told me that in fact it was a USA body otherwise the system would have not allowed an attempt to register it. So the folks at Nikon USA can tell you if they choose to you just have to find the right agent.
Doug, I don't want to be the bearer of bad news, but being able to register a Nikon product on the Nikon USA website DOES NOT guarantee it is a Nikon USA authorized product. I purchased a used Nikon D3 in 2009 from a private seller and he never stated it was grey market. Being proactive, I registered the D3 while it was in transit to me thinking everything was fine. Unfortunately when the camera arrived, it had neither the "(U)" indicator on the box or the "Nikon USA" sticker in the battery chamber. I contacted the seller about this and he admitted he purchased the D3 out of country. I returned the D3 and got a full refund. The box had a "(J)" indicator on the box.
From my experience, Nikon USA camera bodies have either the (U) stamp on the box next to the serial number, a "Nikon USA" sticker in the battery chamber or both.
Hope this helps...JL
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