A Pistol for Ringo is one of the earliest SWs, so it’s not a great surprise that many costumes look a bit old fashioned.
Django, released almost a year later, changed the SW wear a lot. As had the Dollar trilogy.
Yet up to 67 many SWs costumes resemble more 50s US westerns than what many people imagine as a typical SW look. Especially the long dusters, which are associated by many as THE typical SW dress, do not appear as much in Spagies as one might think.