1. To remove the scratches on the watch, you need to prepare the following materials: toothpaste and paper towels.

2. Open the toothpaste below, and apply a proper amount of toothpaste to the scratching part of your hand, as shown in the figure.

3. Take out the tissue for later use, as shown in the figure below.

4. Then wipe the scratches on the watch with a paper towel, as shown in the figure below.

5. Finally, the scratches on the watch are gone, as shown below.