Sharp looking bike, I have one that's very similar, probably a few years older in the same colors.
Mine has the older rectangular head badge, Weinmann brakes and Weinmann convex style dimpled rims, Suntour Cyclone derailleurs, same saddle and post as yours, Moto scripted bars with Velox cloth tape and plugs, Stronglight cranks, BB and headset, and a GB stem. Best of all the paint and decals are near mint as are the wheels and old school skinwall Wolber tires. The only defect is that the 531 tubing decal is flaking away.
I had bought it since I had a near identical bike years ago back in high school. This one is a few a year or two newer than the one I used to have. I believe mine is a 1974 or 1975.