You can simply wipe the surface clean with almost anything and any oils just swipe away.

You can simply wipe the surface clean with almost anything and any oils just swipe away.

Just take time to clean the surface.

It shows video for phone screen protection; applying to a watch is simpler, but you still need to be careful and have a clean crystal surface before you apply the protective shield

Make sure surface is free of dust prior to putting on

Make sure the surface is clean and you won't have any bubbling