When I got mine it had no belts. I did some pic collecting and found these:
Not sure if this retractor type was oem or not. I found one retractor in my parts pile but it seemed too short. This seat is in the wrong location btw. Too far forward.
I believe this is the correct layout on the rear however. Outside belts attached to seat mount bolts and inside belts have their own mounts.
This seat is in the correct location and has the armrests.
A close up of the belt mounts.
