Sapphire crystal vs mineral crystal

The crystal is the part of the watch that covers the dial and protects it from being damaged. Redwood uses two types of crystals that sapphire crystal vs mineral crystal commonly used in watches: hardened mineral glass and sapphire. Hardened mineral glass is made through a process of heating and cooling glass to temper it.

Which is the right crystal for my watch? There are 3 main types of watch crystal:. Sapphire crystal is more reflective than mineral crystal due to its higher index of refraction. Applying one or more layers of AR anti-reflective coating will limit this reflection to a very low level. Very often, lines and marks on the top surface of a sapphire crystal are mistaken for scratches but are actually the scratched AR coating, or just AR coating wearing off after time.

Sapphire crystal vs mineral crystal

The crystal of a watch — the clear cover that goes over the dial and protects it — can be made of a variety of materials. Generally, there are three types of crystals used in watchmaking: sapphire crystals; mineral crystals; Plexiglas often called plastic or hesalite acrylic crystals. Depending on the cost of the watch, or the rugged functions of the watch, different crystals are used—influencing the price and value of the watch. Typically in the luxury watch field, sapphire crystals are preferred. Sapphire is extremely strong and scratch resistant — making it the top choice for a fine timepiece. While sapphire is the more expensive of the three crystal choices, it has its advantages due to the scratch and shatter resistance. In addition to being scratch resistant, a sapphire crystal has more ability to withstand cracks and breakage than glass or plastic. Generally a mineral crystal is an ordinary glass crystal that has been heat treated or chemically treated to withstand scratches. While it is not as scratch-resistant as sapphire, it is more scratch-resistant than plastic. Under extreme hot or cold conditions — if the glass is bluntly hit on a certain angle — the glass can actually crack or shatter.

Another option is to do a scratch test.

Log in. Sign up. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. Mineral is softer and will scratch like a bugger if you knock it against a rock, but it's less likely to shatter which makes me think that from a safety and performance perspective it's actually superior to the more popular and expensive option.

If you buy through links on our site, we may earn an affiliate commission. When people start shopping for watches, the type of watch glass can cause a lot of confusion. One of the most common sources of confusion is sapphire because it is also used in jewel bearings in the watch movements inside the timepiece and sapphire crystal is used to cover and protect the watch dial. The most common types of watch glass, or crystal, used to protect the face of a watch are Sapphire Crystal, Mineral Crystal, and Acrylic. The main difference between these three types of watch crystals is the level of hardness and scratch resistance that they each provide. While sapphire is considered the most scratch-resistant, it is also the most expensive of the three. Other jewels such as diamonds are also used in watchmaking although synthetic rubies are very common.

Sapphire crystal vs mineral crystal

Every watch is built with a transparent glass known as a crystal, which is a crucial component responsible for shielding the watch dial and hands. It can also set the luxury of your watch, and while there are plenty to choose from in the market, there are two perennial favorites that offer unique qualities: sapphire and mineral crystal. It is made by heating pure aluminum oxide at extremely high temperatures, which prompts the material to crystalize and take structure. Adding diamond-coated saws creates a disk that transforms into a transparent yet premium-looking crystal after it is polished.

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You also can use professional machine to measure the density, luminousness, refractivity, hardness and some other technical information. What is a Mineral Crystal? Pinterest Tag. Mineral is softer and will scratch like a bugger if you knock it against a rock, but it's less likely to shatter which makes me think that from a safety and performance perspective it's actually superior to the more popular and expensive option. This avoids scratching on the surface of the coating. Pricey tools and equipment are used to polish and cut this material to its by-product. This and other topics are covered in this article. Cookie from Smartsupp to show returning visitors started chat conversation even after reloading the page and to send automatic messages. SuperSport Petrol. We found that sapphire crystal, also called as sapphire glass is the choice that serves Rohje watches the best. What makes sapphire crystals expensive? Individual Privacy Preferences. Inside Momentum - Judy N.

Which is the right crystal for my watch?

How do the the watch glasses differ? Different types of glass The watch glasses are made of three different materials. Most luxury watches put their AR coating under the sapphire crystal. If you have a watch with plexiglass, you may also compare it with the two and rank its clarity. Best Momentum Pair Ups March, Sapphire coated mineral crystal glass To compensate for the properties of mineral glass, many manufacturers use mineral glass with a thin layer of sapphire. Mineral crystals are a tad more expensive than the plastic or acrylic option, but way cheaper than sapphire crystal. Sent from my iPhone using Tapatalk. This makes it considerably harder than regular glass. For a better experience, please enable JavaScript in your browser before proceeding. There are 3 main types of watch crystal:. Diamond is the hardest mineral, with a value of 10, and can scratch all other minerals. How to Choose and Use a Pedometer September,