Sapphire crystal vs mineral crystal

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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.

Sapphire crystal vs mineral crystal

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. An AR coating on the inside of the crystal provides a good AR performance while avoiding this problem. If you do scratch a sapphire crystal, then it cannot be polished away and will need to be replaced. This means that when the crystal is inserted into a hard, steel or titanium watch case, it requires a gasket to ensure a waterproof seal. The crystal is pressed into the case, using a crystal press tool. Over time, these crystal gaskets can become brittle and break, so it is a good idea change the crystal gaskets every few years, to ensure the ongoing waterproof performance of your watch. If you are not that tough on your watch and are unsure whether you really need sapphire, then you can always order your watch with a regular mineral crystal. If you find it gets scratched up over the first year or two, then you can just ask our Service Department to upgrade your watch to a sapphire crystal, next time you send it in for service! Sapphire vs.

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Of course it is a shame if the surface of watch glass gets scratched. Other people might not even notice it, but if you are aware of it, it is not easy to overlook. That's possible when focusing on details. Most commonly the glass of watches is made out of mineral glass or sapphire crystal. Sometimes even acrylic, meaning plastic. We found that sapphire crystal, also called as sapphire glass is the choice that serves Rohje watches the best. Sapphire crystal is made in very high temperatures, and it is constructed of crystalline aluminium oxide.

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

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. An AR coating on the inside of the crystal provides a good AR performance while avoiding this problem. If you do scratch a sapphire crystal, then it cannot be polished away and will need to be replaced. This means that when the crystal is inserted into a hard, steel or titanium watch case, it requires a gasket to ensure a waterproof seal. The crystal is pressed into the case, using a crystal press tool.

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Wooden Watches. Individual Privacy Preferences. Shipping, taxes, and discount codes calculated at checkout. It has an elegant design that gives it a luxurious feel despite its price range. For the best experience on our site, be sure to turn on Javascript in your browser. Sapphire crystal is more reflective than mineral crystal due to its higher index of refraction. The wearer also has the option for an 18K gold-encrusted and polished-brushed 9-row bracelet with a butterfly clasp. The Avenger Blackbird comes in either 44mm or 48mm light and sturdy titanium cases. Mineral glass shredders almost just as easily as sapphire. Meanwhile, you may attempt to scratch your sapphire crystal with metal. What is a Field Watch?

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.

The glass of e. Diamond can scratch them; so can man-made materials that incorporate silicon carbide, which, with a MOHS rating of between 9 and 10, is harder than sapphire. October, Create Your Branded Watches. Learn more about watch-related terms. Scratching a mineral glass with a fingernail will produce a high-pitched noise. Redwood uses two types of crystals that are commonly used in watches: hardened mineral glass and sapphire. Sapphire glass has a hardness of around HV — twice as much as mineral glass. It is, in fact, more reflective than mineral crystal. By the way, you can easily check whether your favorite watch comes with sapphire glass using the so-called water drop method: dab a drop of water on the surface of the watch glass and observe its behavior. Leave A Reply.