The ABCs of Time: All About the Different Crystals Used in Watches Today
The piece explores the various types of crystals used in watches, highlighting their evolution from early pocket watches to modern timepieces. It discusses the historical context of watch crystals, starting with the primitive designs of the 16th century, moving through the introduction of mineral glass and acrylic, and culminating in the widespread adoption of synthetic sapphire crystals, which are now the standard for both high-end and mid-range watches. Each type of crystal has its unique characteristics, pros, and cons, influencing their usage in different watch styles. Mineral glass is presented as a cost-effective option but is prone to scratches and requires replacement after damage, while acrylic offers warmth and can be polished to restore its clarity but lacks scratch resistance. Sapphire crystals, known for their durability and scratch resistance, are considered the premium choice, yet they can shatter upon impact and require anti-reflective coatings due to their high reflectivity. Additionally, Corning Gorilla Glass is mentioned as a newer alternative, primarily used in smartwatches, offering a balance between durability and cost. The summary emphasizes that while sapphire is often seen as superior, each crystal type serves specific needs and preferences in the watch market.
