What is Sapphire Glass? Learn about Sapphire glass watches

On many watch glasses today are often made from Sapphire glass to increase the elegance and durability of the watch. So what is sapphire glass and what are the advantages and disadvantages of this type of glass? Let’s learn about Sapphire glass and Sapphire glass watch with lassho.edu.vn now!

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What is a sapphire crystal watch?

Sapphire (also known as jade or bluestone) is a rare stone commonly used in the jewelry industry.

This is a gemstone found in nature with its main component being aluminum oxide crystals. Other elements that make up the different colors on this gemstone such as: Blue, yellow, purple, orange and green are made up of familiar chemical elements, respectively: Iron, titanium, chromium. , copper or magnesium.

Sapphire glass watch is a watch with a glass made of Sapphire stone with corrosion resistance, hardness on the 9 scale and scratch resistance (can only be scratched by impact with diamonds). It is thanks to these important properties that sapphire is used more and more in the processing of watch glass to both increase its durability and increase the luxury and value of the watch.

How is the watch’s sapphire glass produced?

Sapphire glass is formed by heating aluminum oxide powder (AL2O3) under high temperature up to 2054 degrees Celsius. Al2O3 powder after being melted will fall into a rotating platform and form cubes.

Through slicing, grinding and polishing this crystal, a sapphire crystal will be created exactly to the wishes of the manufacturer. However, to create a transparent glass surface, the glass needs to be heat treated one more step to enhance its sophistication and aesthetics.

Advantages and disadvantages of Sapphire glass on watches

Advantage

• The biggest advantage of this type of glass is that it has excellent hardness, second only to diamonds, making them difficult to break.
• The glass is scratch-resistant so that bumps are no longer a concern.
• High transparency enhances elegance, attractiveness and helps to see clearly when having to do a lot of outdoor activities.

Defect

• Because the glass is made of rare sapphire, the product often comes with a high price tag.
• The glass surface cannot be polished, so when it is scratched, users will have to pay the cost of replacing the glass.
• With some types of thin Sapphire glass will often come with not high scratch resistance. So after a long time of use, the glass is still scratched like other types of watches.

Classification of Sapphire glass

Thin coated sapphire glass

This is a type of glass that is laminated with a thin layer of Sapphire on top, so its hardness and scratch resistance are not high, only equivalent to normal glasses. This type of glass is often equipped on low-priced watches or difficult-to-design glass with monolithic Sapphire such as: spherical glass, super-thick glass, …

Thick coated sapphire glass

This type of glass is laminated with a thicker layer of Sapphire on the surface, so the hardness and scratch resistance are also higher. Therefore, compared to thin coated sapphire glass, thick coated sapphire will have a longer life and correspond to a mid-range price.

Solid sapphire glass

Monolithic sapphire is often used in high-end watches with the glass made entirely of monolithic Sapphire. This type of glass has a hardness second only to diamond and extremely high durability, and it also has a luxurious beauty with 7 kinds of colors that sparkle when exposed to strong light.

How to recognize Sapphire glass watch

If you are wondering how to recognize a Sapphire glass watch, please refer to the following 4 ways:

The first way: Observe the watch glass

This way is for those who are experienced and knowledgeable about watches. You identify by observing the glass under strong light, if it is made of monolithic Sapphire, the glass will have clear clarity, the color when exposed to strong light can be: Pink, milky white or blue blue. In addition, when touching the glass surface, you will feel smooth, smooth and cool.

The second way: Observe the drop of water on the glass

You put water on the watch face and tilt the glass. If water flows in an inclined direction and dissolves evenly in all directions, it is normal glass. Conversely, if the water stays in place and the drop retains its original shape, it is a sapphire crystal.

The third way: Test the hardness of the glass surface

Since the hardness of monolithic Sapphire glass is second only to diamond, if you rub another metal against the glass, you will not notice any scratches. However, this is not a recommended method because if the Sapphire glass is hit at the right point of breakage, it can destroy your watch glass.

Fourth way: Use professional measuring tools

A more professional method is that you can use a professional hardness tester. This is considered the most accurate and safe method to check the quality of your glass.

Notes when using a sapphire watch

When using a Sapphire glass watch, you should keep a few things in mind:

– Although the Sapphire glass of the watch is considered to have good durability and hardness, you should also use and clean the watch carefully to improve the life of the watch.

– If the Sapphire glass of the watch is cracked or scratched too much, you need to go to a warranty center or a reputable watch repair place to replace it to avoid dust and water that can get inside and cause damage. damage other parts.

– Do not wear the watch with other jewelry to avoid causing scratches and collisions with the watch.

– Store the watch in the case and cover it with a soft cloth if not in use.

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Above is an article that provides information to help you understand more about Sapphire glass as well as Sapphire glass watches. If you have any questions, please leave a comment below for lassho.edu.vn to answer for you!