I’ve been using a Galaxy Note 3 as my main Android device for the past several months. One of the first things I bought to protect it was an S-View case which replaces the phone’s backing create a flip case. This case uses a magnetic latch to automatically dim the Note 3 screen when the case is closed.
There’s a small square cutout in the front which shows notifications as well as time and weather. I paid about $65 at the AT&T store but you don’t have to because online deal site Paydeals has the S-View case for $18.
According to discussion on deal site Slickdeals, a few members have ordered the case, and it appears that this could be OEM. However I’ve not ordered from Paydeals in the past, so as they say – YMMV (your mileage may vary). Given the relatively low cost, it’s probably worth a shot.