I put covers on a set of SE pickups - not SE 245s but just regular SE pickups like they put in basically every SE humbucker guitar for the longest time up until 2010 or so. These are not 49.2mm like the USA models. They're "PRS Designed" but Asian made by B&G Pickup company. My two measured out at 50mm for the neck pickup and 52mm for the bridge pickup. 50mm is pretty standard and it was no trouble finding one, but 52mm was a hard one to come by. 53mm is considered F-spaced and those are easy, but the 52mm ones were tough. I ended up with a Gibson branded one for WAY more than I wanted to pay. But it worked great.
http://store.gibson.com/bridge-humbucker-cover/
Sorry for the flash, but this is how they turned out.