For watch lovers, a fresh scratch on an otherwise flawless crystal is a devastating sight. The feeling can be even worse on a brand-new watch, or one that just returned from servicing. But before you send your tainted timepiece back for a crystal replacement, you may want to consider a home remedy. First you need to determine what can be done — and that depends on the type of crystal you’ve scratched.
https://gearpatrol.com/2018/01/04/timek ... e-crystal/