AR Coatings: Sapphire crystal is more reflective than mineral crystal due to its higher index of refraction. (1,8 compared to 1,47). Applying one or more layers of AR (anti-reflective) coating will limit this reflection to a very low level. Very often, lines and marks on the top surface of a sapphire crystal are mistaken for scratches but areSapphire also gets you double the storage to 32gb, the whole world loaded in maps vs you having to load your region, and the newer dual-band gps, plus the more rugged crystal for an outdoor adventure focused watch. Agree about style options, but yeah, itâs a no brainer for $100 when already spending $900. Fjogaseri.
Dragontrail manufacturer Asahi Glass claims its glass features a Vickers hardness of between 595 and 673. There isnât much difference between the 2 then, as thereâs some significant overlap. a glance at Sapphireâs hardness rating further illustrates now . Sapphire boasts a Vickers hardness of over 2,000, with one study putting it at
The difference between Seikoâs hardlex and ordinary mineral glass is its hardness. Hardness as defined by the Mohs scale is the mineralâs resistance to scratches. The Mohs scale rates the hardness of a mineral from 1 to 10. Most ordinary mineral glass will have a hardness rating of about a 5 or 6, while Seikoâs hardlex has a rating of 8.9Ft9.