Resin glass is made of acrylic or plastic. It is the most easily scratched but it can be buffed over easily. Mineral glass is harder than resin glass or acrylic glass. It is more difficult to scratch than acrylic crystals but harder to buff out the scratches.

How can you tell the difference between glass and resin?

Glass will have a flawless, clean and bright finish, whereas resin can have a more plastic feel and finish which is generally duller less smooth and perfect. The more concerning differences between glass and resin come with time.

Which glass is best for watches?

A Guide To Watch Glass

• Acrylic Glass. The least expensive glass is really a plastic. Acrylic plastic is tough, flexible and transparent.
• Mineral Glass. This is the most common type of glass to be found in a designer watch.
• Sapphire Crystal. Probably the most desirable watch glass is constructed of either synthetic or genuine sapphire.