Introduction by Andrea Piras (University of Bologna). Chair: Paolo Ognibene (University of Bologna). Speakers: Andrea Gariboldi (University of Trieste); Gian Pietro Basello (University of Naples “L’Orientale”); Alessia Zubani (LABEx HASTEC EPHE-TFL): “The Art of Clockmaking in Late Antique Iran”. Conclusions by Antonio Panaino (University of Bologna).