How to Identify Watch Glass Types
Firstly, by **tapping the glass lightly** with your finger and listening to the sound produced. **Acrylic glass[/b
How to Identify Watch Glass Types[/size]
Firstly, by **tapping the glass lightly** with your finger and listening to the sound produced. **Acrylic glass** will make a sound similar to plastic, whereas **glass and sapphire crystal** have a more solid sound.
Another method is by **weighing**; acrylic glass is the lightest, while sapphire crystal is the heaviest due to its density.
The **thermal conductivity** of sapphire crystal is also a giveaway. It feels cool to the touch because it dissipates heat efficiently. When you place a drop of water on a sapphire crystal, it tends to bead up rather than spread, due to its smooth surface. In contrast, water spreads out on other types of glass.
Utilizing these methods can help you **differentiate between the types of watch glass**, ensuring you know exactly what’s protecting the face of your watch.
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