I have no idea if this applies to the Equinox --
I have a Kimber Eclipse, same concept cosmetically. The black portion of the finish wears VERY easily.
So before buying, I would recommend that you check this out, expecially if the gun is going to be used a lot, such as for Concealed Carry.
OH -- Forgot to add, the Sig 229 is one of the best pistols out there -- my only reservation would be the finish on this one!