Uploaded November 2022 | Updated September 2026, 2 hours ago

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In this watch crystal scratch test video, I work out which watch crystal is best for scratch resistance by using a Mohs hardness rating testing kit. Here I test acrylic vs mineral vs sapphire vs Flame Fusion crystal vs Krysterna vs K1 crystal vs Hardlex vs sapphire-coated mineral crystal, to see if any can supplant sapphire as the king of watch glass.

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🎬 Chapters
0:00 Which Watch Brands Are Lying To You?
0:10 Acrylic vs Mineral vs Sapphire
0:20 'Innovative' Proprietary Crystals
0:37 Mohs Hardness Test Kit
1:26 Methodology
1:46 The Crystals & Scratch-Resistance Claims
2:00 K1 Crystal
2:39 Hardlex
3:07 Sapphire-Coated Mineral Crystal
3:36 Flame Fusion Crystal
4:18 Krysterna
5:11 My Predictions
5:21 WatchShop Black Friday Deals (Sponsor)
6:18 Early Findings - 'Proprietary' Materials Exposed?
7:12 Pick 2 Scratch Tests
7:22 Pick 3 Scratch Tests
7:32 Pick 4 Scratch Tests
7:49 Pick 5 Scratch Tests
8:16 Pick 6 Scratch Tests
9:01 Invicta Fail Fusion?
9:44 Pick 7 Scratch Tests
9:54 Mineral Eliminated
11:19 Pick 8 Scratch Tests
11:42 Hardlex Eliminated
11:58 K1 Eliminated
12:59 Krysterna Eliminated
13:54 Flame Fusion Eliminated?
14:10 Pick 9 Scratch Tests
14:48 Sapphire Coated Crystal Eliminated
15:37 Watch Crystal Tier List
15:47 D Tier Crystals
16:02 C Tier Crystals
16:12 B Tier Crystals
16:44 A Tier Crystals
17:00 S Tier Crystals
17:18 Crystals vs Key Scratch Test
17:29 Crystals vs Knife Scratch Test
17:54 Knife Scratching Krysterna Coating
18:54 Is The Marketing A Lie?

📺 Related Videos
Acrylic vs Mineral vs Sapphire: youtu.be/vG3F2iW-W-8
Stuhrling Watch Review (Krysterna): youtu.be/jnKzr1hWLPw
Beginner's Guide To Watches: youtu.be/4JIhQ3Gx7N8

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🚨 Disclosures
I use affiliate links when linking products in the video description. Ben's Watch Club is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com and affiliated sites. We also utilize affiliate programs with retailers such as Jomashop, Aliexpress, WatchShop, and more. Please assume any product links could be affiliated.

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Ben's Watch Club tends to cover affordable watches like Seiko, Timex, Casio, Citizen, MVMT, Vincero, Bulova, Orient, Hamilton, and more. We rarely feature luxury watches like Rolex, Patek Philippe, Breitling, Tag Heuer, Tudor, Grand Seiko, Cartier, Omega, Audemars Piguet, or Hublot due to their price.