KAS team operated 1958-1979, disappeared for a time and resumed play once again in 1985 for three years. Judging from what can be seen in pictures frame may date from 1978-79 time.

Frames were supplied by a number of different manufacturers over the period as described in this article:

Colnago Super 73 | Cycle EXIF

Do not doubt that your frame is likely Zeus. One dating aid might be the use of the Cinelli investment cast shell made by Microfusioni. Do not know what year they would have first employed these.

The company made use of this BOCAMA lugset for top models in the later 1970's.

This advert for the Zeus 2000 Supercronos (top of the line model) road machine of the late seventies identifies its tubeset as Reynolds 531SL: