With these little glass date magnifiers, any watchmaker or watch repairer can add to the look of any mineral glass crystal and make it easier to read at the same time. Day and date displays in watches can sometimes be pretty small and hard to read. With the addition of a date magnifier to your watch, you can make it easy to read the day or date display without having to get a whole new watch crystal. These glass date magnifiers can be attached to glass watch crystals with UV glue in seconds, making it possible for you to see the day or date on your watch dial once again.