Sapphire crystal vs mineral crystal

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, sapphire crystal vs mineral crystal. Most commonly the glass of watches is made out of mineral glass or sapphire crystal.

JavaScript seems to be disabled in your browser. For the best experience on our site, be sure to turn on Javascript in your browser. There are a number of designs for crystals, depending on the watch and the manufacturer. A crystal of a watch comes in either of the following materials: sapphire crystal, mineral crystal, plexiglass, or acrylic hesalite crystal. Companies not only consider the material of a crystal but also its cost.

Sapphire crystal vs mineral crystal

Circula dive watch from the s with a scratched hesalit glass and the new edition with sapphire. The glass or often crystal protects the interior of the watch, thus dial, hands and movement, against damage through dirt or moisture. In general, watch glasses can be classified in three groups: Sapphire glass, mineral glass and hesalite glass also: plastic, acrylic, Perspex. They differ in particular in their hardness and the reflection behavior. But what are the differences, advantages and disadvantages of the different watch glass types? This and other topics are covered in this article. Hesalite glasses, which were widespread a few decades ago e. Hesalite glass is about 50 times softer than sapphire glass and therefore very sensitive to scratching, but on the other hand it is very elastic and therefore very shatterproof or impact-resistant. Superficial scratches can be polished out by yourself with a polishing paste e. Polywatch and a little patience. Chemically speaking, mineral glass comes very close to window glass — mineral glass is therefore naturally less shatterproof than hesalite glass. Today, most mineral glasses that are used in watches are made more resistant on their surface by special manufacturing processes e.

Applying one or more layers of AR anti-reflective coating will limit this reflection to a very low level. While it is not as scratch-resistant as sapphire, it is more scratch-resistant than plastic. This makes it considerably harder than regular glass.

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. I guess the question could be, do you a prefer a diver that looks good, but could be susceptible to catastrophic failure no matter how small the chance during a dive or a beat up looking crystal that is technically more durable?

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. They are used to prevent friction between metal watch parts. Click here to see some of our top picks for affordable sapphire crystal watches. Watch glass is an important part of the watch because it protects the watch hands and dial.

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.

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Log in. Sapphire crystal is nowadays made of synthetic sapphire. However, it withstands relatively well in normal use and requires a hard impact to break. Different types of glass The watch glasses are made of three different materials. Moreover, these watches are tailor-made for both racers and race enthusiasts. Details on privacy policy can be found here. Skip to content. Hesalit glass — mainly found in vintage watches Hesalite glasses, which were widespread a few decades ago e. The line is highly regarded by industry experts. The dials are luxury right at your wrist — available in opaline-silver, brown, bronze, or blue.

It belongs to the corundum group mineral, with cubic crystal system.

They are made of glass. Sapphire crystals with AR coatings over are prone to scratches. Sometimes even acrylic, meaning plastic. Gave the beater some hard, very hard hits in the stoneyard and moving and sorting the stone on site. AVS Forum. Content from video platforms and social media platforms is blocked by default. These coatings will limit the reflection to a significantly low level. JavaScript is disabled. Rohje Adventurister watch is coated with this anti-reflective coating. And can be easily buffed out if scratched.