Robato

Hi guys, Just bought PAM 026K a week ago from a local dealer in my country. He said that this 026K is from noob factory. I'm unable to open the caseback (don't have sticky ball), so I'm not sure what movement inside the watch. The movement itself runs well, My only concern is, the crown felt a little gritty when I set the time, unlike my noob 111. The 111 felt smooth. When I wind the 026K, the spring back action creates a sound. Makes me wonder because this didn't happen with my 111. Is this normal for hand-wound movement? Have you guys experience this? Some pics: