I just picked up what appears to be a late 60's Zeus locally. The frame is made from Durifort metric tubing. It was given an average paint job in orange at some point, but looks good from a few feet away. The drivetrain is Zeus Criterium, and the brakes were upgraded at some point to 2000 centerpulls. It came with an age appropriate nutted Cinelli stem drilled for the cable stop. The bike is surprisingly light. I've seen limited information on Zeus in the archive, so decided to add a link for some pictures.
http://www.flickr.com/
Nick Brunner
Brooklyn, NY