People often look at their watches to check the time. If there is a scratch on the watch crystal, it can make it difficult to read the time clearly. A watch-crystal scratch can often cause individuals to replace the entire watch. To save time and money, consider removing the scratch from the watch crystal on your own. This process requires between two to four hours of work.
Mix 1 cup of water and 2 drops of dishwashing detergent in a glass. Dip 800-grit sandpaper into the solution.
Sand the watch crystal with the dampened 800-grit sandpaper. Continue to sand the surface in a back-and-forth motion until you can no longer feel the scratch on the surface. This will create a smooth finish, but it will appear cloudy.
Scrub the surface repeatedly with metal polish. Apply a generous amount of metal polish onto a clean cloth and rub the surface completely until the crystal appears clear. Wipe this surface dry with an old towel.
Apply car wax to the crystal with an old rag. Rub the wax in a circular motion to cover the entire crystal. Wipe away excess wax.
Buff the crystal with a microfiber cloth. Create a smooth, clean finish and reinsert the crystal onto the watch if you removed it.