The neck is almost "Super Real" size and is wide at the nut at 42.5 mm which was unexpected. It is very comfortable to play and has no neck issues. The pickup looked to have a ceramic magnet and has resistance in the 7.5 k range which is very nice in a strat guitar. Rolling off the volume and changing the tone setting gives a pretty wide range of sounds.
I thought this might be something that I pass on quickly but it ranks among the most comfortable strats I have played and has very nice sustain. Could it be the brass bridge? In any case, here are some pictures of mystery model Greco from April 1982.