I can't say that I've ever seen one with Galli components. And I can't quite make out the serial number in the pic. However, if you can post the serial number, I should be able to tell you the year, provided it is a Miyata manufactured frame.

Galli did not offer derailleurs until 1976, so assuming they are original, it is no earlier than that. Univega typically used Japanese components but I suspect this is from that crossover period from Italvega to Univega, when the production was shifting from Italy to Japan. My guess is very late 1970s and a mid-range model on the basis of an integrated derailleur hanger, but no braze-ons and non-recessed brake bolts. Knowing the seat post diameter will also help in determing the level of the frame.