If the clock face is the inscription "Cristal", it means that their glass is made from minerals. The inscription "Hardlex" indicates the origin of mineral glass, but the hardness of this composition is higher due to special handling. The inscription "Sapflex" says that for the manufacture of these hours were used mineral glass with a thin layer of sapphire. How to differentiate a sapphire crystal from a mineral, if it has no label?
In the first place, the characteristics of the glass must match the device class in which it's installed. Shockproof waterproof watches are most often equipped with a sapphire crystal. Watch for everyday wear and sports are equipped, as a rule, mineral and plastic glasses, at least the sapphire crystal. Do not expect that the budget device will be installed expensive sapphire glass.
Can be applied to the glass, watches the drop of water. Tilting in different directions watches with mineral glass, you notice that the water droplet spreads, leaving a trail of so-called tail. Like a drop of water does not occur on the sapphire crystal that even when tilted hours in the water drop does not spread on the surface of the glass and rides on it like a mercury ball without a tail. If the experiment is performed with sapphire crystal with antiblikom, a drop of water will remain in the same place and put it, even when you turn the device glass down. The complexity of the experiment is to choose the right droplet size.
The second method of verification is not always possible when you purchase products, for example, to try to scratch the glass. Sapphire does not scratch, but it breaks easily. In terms of the store, you can check the glass for glare mineral gives them no sapphire. If the watch features anti-reflective glass, find out it's sapphire or mineral, it is not possible, as both seem invisible, that is, not reflect light. And that, and the other cover has a bluish tint.
The surest and most accurate way to distinguish one glass from another is in turns to bring each to the tip of the nose and hold for a few seconds. The colder material will be sapphire, as it heats up more slowly than mineral. If both will heat up evenly, here we can confidently assert that both mineral glass. However, this experiment can be performed with two devices, the one of whom it is known that it is equipped with coated mineral glass.
Compliance with the device class
In the first place, the characteristics of the glass must match the device class in which it's installed. Shockproof waterproof watches are most often equipped with a sapphire crystal. Watch for everyday wear and sports are equipped, as a rule, mineral and plastic glasses, at least the sapphire crystal. Do not expect that the budget device will be installed expensive sapphire glass.
How to distinguish the expensive from the simple glass of mineral
Can be applied to the glass, watches the drop of water. Tilting in different directions watches with mineral glass, you notice that the water droplet spreads, leaving a trail of so-called tail. Like a drop of water does not occur on the sapphire crystal that even when tilted hours in the water drop does not spread on the surface of the glass and rides on it like a mercury ball without a tail. If the experiment is performed with sapphire crystal with antiblikom, a drop of water will remain in the same place and put it, even when you turn the device glass down. The complexity of the experiment is to choose the right droplet size.
The second method of verification is not always possible when you purchase products, for example, to try to scratch the glass. Sapphire does not scratch, but it breaks easily. In terms of the store, you can check the glass for glare mineral gives them no sapphire. If the watch features anti-reflective glass, find out it's sapphire or mineral, it is not possible, as both seem invisible, that is, not reflect light. And that, and the other cover has a bluish tint.
The surest and most accurate way to distinguish one glass from another is in turns to bring each to the tip of the nose and hold for a few seconds. The colder material will be sapphire, as it heats up more slowly than mineral. If both will heat up evenly, here we can confidently assert that both mineral glass. However, this experiment can be performed with two devices, the one of whom it is known that it is equipped with coated mineral glass.
