Did you know that around 2002 Rolex started laser engraving a crown in all the sapphire glasses? Every dot is in a different depth in the sapphire. : r/rolex
When did Rolex Change to Sapphire crystal? A Guide to Rolex Crystals - Millenary Watches
New Rolex Phantomlab FUTURE COMES COSMOSIGN Sapphire Crystal Watch | eBay
The Difference Between Sapphire and Acrylic Crystal in a Watch | Rubber B
Types of Rolex Crystals - Bob's Watches
Pros and Cons of Acrylic Crystals on Vintage Watches| Bob's Rolex Blog
New Replacement SAPPHIRE Crystal Watch Glass For Rolex 16233 25-295c 30.4m C22S | eBay
Rolex Daytona Sapphire glass 116520 16520 for $698 for sale from a Trusted Seller on Chrono24