The Sapphire Upgrade: Why It's Worth It
Author: Funny Items
Release time: 2026-08-25 07:25:11
View number: 14
Sapphire vs Mineral: The Upgrade
Upgrading a mineral crystal to sapphire is the single most popular Seiko mod. Here is why it's worth it.
The Upgrade
- Sapphire: nearly scratch-proof (9 on Mohs scale)
- Mineral: good but develops fine scratches over years
- Result: your dial stays pristine for decades
Beyond Scratch Resistance
Sapphire also offers better clarity — and with an anti-reflective (AR) coating, dramatically better legibility in bright light.
Shapes to Consider
- Flat: modern, minimal profile
- Domed: adds depth, vintage character
- Double-domed: elegant, thins the visual profile
Frequently Asked Questions
Does sapphire shatter easier?
It is harder but more brittle — a sharp edge impact can crack it, while mineral chips. Daily wear rarely tests it.
Is AR coating worth it?
Yes — it minimizes glare and maximizes dial clarity. See our crystal shapes guide.
How do I install it?
You'll need a crystal press. See our crystal press guide.