I recently came across a fake remote too. And it's supposed to be a US wiimote. This didn't come from Nintendo but from one of the reputable suppliers. Even they were fooled!
Basically, try to get your wiimote changed if you get a fake. Force your retailer to do so because they should be able to get their supplier to swap it for an ori set. MAKE SURE you keep your box and receipt for the exchange!
Wii Remote + Nunchuk ( FAKE ? ), Pictures Side by Side