We use a sapphire coated mineral glass on most of our watches which is very durable so as long as you don't chuck it across the room, this shouldn't happen! Unfortunately, we don't offer accidental damage warranty coverage - we wanted to make our watches as affordable as possible and so we don't build any replacement costs due to accidental damage into the price of our watches. We're humans too so if there are any issues, shoot us an email and we'll see what we can do for you!