Things You'll Need
Instructions
Remove surface dust from the face using a hand-held air blower. Aim the nozzle away from the face to avoid blowing dust into the clock.
Clean away tougher dirt using a duster brush. Move the brush in a gentle, swirling motion to remove as much dirt as possible.
Dampen a microfiber cloth with several sprays of glass cleaner. Avoid using too much cleaner, as it may seep through the face's outer seam and into the clock.
Rub the clock face gently with the microfiber cloth. Continue rubbing the face, using a new cloth and more glass cleaning solution as needed, until it is completely clean.