Spring driven with lever escapement, 17 jewels. Incablock shock protection device. Caliber Durowe 1980.
This kind of watches were often made in Milan, so there is a possibility that this one was made there, too. Otherwise, the inscription Geneve is often put on the dial so the watch is more valued. Very similar design has a Rolex Geneve Cellini from the same time.
Inscription int (in shield like ebauchée) is a logo of the factory producing raw movements - Deutsche Uhrenrohwerke (Durowe) L. Hummel & Co. from Pforzheim. When a Switzerland company ETA S. A. in 1965 bought Durowe from Timex (Timex was sold in 1959) it began to use the mark int in the shield. On the website Ranfft Watches the movement Durowe 1980 (int, AS 1977-5) is shown, which was produced from 1987, caliber AS 1977.