The Hardlex crystal is a Seiko‑made mineral glass. It is tough but can scratch more easily than synthetic sapphire. Some owners have reported scratches within the first month, and Seiko does not cover that under warranty. If you are active or work in a tough environment, consider adding a screen protector or accepting that it may pick up small marks.

Thousands of verified owners have shifted their vocabulary from "satisfied" to "liberated." Here is what the community says about why is not just a purchase, but an upgrade to life: