I took one of my Cornelius regulators apart last night. I highly doubt you'll be able to see if anything looks broken.
Mine had a large spring, round metal disk with hole in the center, a metal nipple going through the disk, and a couple of gaskets.
Granted, that regulator is somewhere around 30+ years old, so yours may be different, but I doubt they've changed.
If your pressure gauge only goes to 60lbs, you may actually be higher then 60lbs.