Is this Rolex "Zephyr" c. 1962 authentic?

[Kageboshi]

Hello,

I can buy this watch for $900 at a pawn shop, It looks similar to the ones I've seen online, and since it's not that expensive I really doubt It would be a replica, but I'd still like you guys to tell me if it looks fake or not and if $900 would be a good price. I don't want to send it to a RSC only to have it confiscated...

The only thing that looks suspicious is that the watch strap says it was made in the US, but I read in these forums that sometimes in fact the straps were made here in the US.