(Picking 53) Another very tough Lockwood combination padlock (decoded)

This "Lockwood ASSA ABLOY 25mm Brass Combination Padlock" is very tough even though it's only a 3-wheel combination padlock. I decoded it "out of the packet" without practicing first, and it took be a while to find out some of it's secrets.
This lock is part of the package that Paul Springett kindly gave me!