I had quite a lot of small scratches that occurred by carelessness on the glass, resulting from the normal everyday use (daily use item) and a deep scratch. Large scratch you could feel with your fingernail immediately.
The first two photos are before polishing. Photo 3 and 4 are for the first 3 minutes of polish where every minor scratches were removed without any problems, except the fat. Photos 5 and 6 for more minute polishing. The clock now looks like new.