A friend asked me to replace the scratched crystal in his Swatch automatic. I told him that replacement was not an option, but since the crystal is acrylic, I might be able to buff the scratches out. I did, successfully. But upon close examination, I discover this thing has a plastic escape wheel and anchor? The movement is a 2841-1 ETA. This movement appears to share some of the trend to plastic escapements as found in the Tissot system 51 movements. Has ETA started using plastic in the escapement of other ETA movements as well? Does every ETA 2841 movement use plastic?