In the era when hand lenses were not invented, watching time was also a dangerous move, and the wearer was more likely to accidentally damage the dial after wearing the lenses. Today, the main lens material is Sapphire Glass, which has the same hardness as diamonds, and the sapphire lenses are stronger than mineral and plastic lenses, making them the perfect match for luxury watches. Inadvertent movements of daily life will make hand mirror lens damage, such as collision, scraping, but unless you encounter such as diamond-like hard objects hit or friction, otherwise these are not for sapphire lenses! But the theory is so, How the effect needs to be verified, Ever since, two glorified table dedicated to science has been forced to become our object of abuse today. This time, we use Casio watches to test the performance of sapphire lenses, you will find the use of weapon trying to harm the lens is impossible to do, excellent abrasion resistance for the love table escort. Only wear-resistant is not enough, Casio sapphire lens texture is excellent or not, on the visibility and functionality have a crucial impact, such as with a solar panel charging watch which is extremely demanding. Another Casio sapphire lens thicker than many watch lenses (even if the scale is still visible on the side), it does not affect the absorption of sunlight, high hardness and water pressure will not be fragmented, to ensure that 50 meters waterproof. Imagine the iPhone6 ​​If at the time to achieve the vision of the sapphire lens screen, the price I am afraid will be unattainable. [Destructive testing of the clock laboratory: test the difference between ordinary lenses and sapphire lenses] Test Temperature: 28 ° C / Ambient Light: Incandescent / Test Duration: 5 seconds per rubbing step Test Items: Daily Use Randomly Picked / Tested Hardness: Hardness Tester / Tester: Wang Lao Wu / test location: a watch repair center laboratory / test watch Model: EDI EDICE Casio EDIFICE EFB-507 / SHEEN SHE-4516 1, hardness test: second only to the hardness of diamonds This hardness tester is a treasure for sale, it is a professional building materials testing equipment used to test the hardness of the surface, is a very common kind of professional equipment. In order to show the hardness of ordinary lenses and sapphire lenses, the standard test set to 4, and then test. Common lens test results of 5, Casio EFB-507 watch sapphire lens test results far> 8. 2, scratch test: you draw ah you draw ah! Here we simulate the daily items on the end of what kind of scratches the two lenses, we first to ordinary lens friction test. Common lenses were emerald, 18K gold, 925 silver, stainless steel and different sharpness of the iron parts scratch test. Why choose them? Because the daily necessities of life items and hand lenses produce external friction, the probability is high, the advantages of ordinary lenses at a glance. 925 silver ring has no effect on the lens. Often watch with students wearing emerald bracelet note, the lens and emerald surface for 5 seconds after the friction, scratches appear. 18k gold ring unscrupulous injury to ordinary lenses, scratches clearly visible. Stainless steel key head on the lens without injury. USB aluminum interface friction lens no scratches. Iron nails on the lens did no harm. The lens does not withstand the sharp edge of the scissors, scratches show. Steel file is very obviously scratched the lens. Daily household electric drill lens damage to the lens is very large, easy 1 second only. The following is the turn for the watch science consecration - sapphire lens lenses, please click the video legislation see. http://v.qq.com/page/v/b/m/v0153zr9sbm.html 3, water pressure test: pressure mountain big mountain pressure After filming the video, we conducted a third test of the sapphire lens, which is the hydrostatic test. SHEEN SHE-4516 waterproof 50 meters (daily faucet flush about 30 meters water pressure), and we use the water pressure gauge is greater than the rated water pressure. Before the test, the watch was soaked in water for a week in advance, to check if the water-proof rubber ring leaks in the watch before performing the water pressure test. Water pressure can be sustained, and can read the pressure value. Watch is placed in the water pressure. After pressurization, the water surface above the water mist appears, you can clearly see the current value of the water pressure display is 5. Wong Wong-wu, who asked not to be named, put the pressure value slightly above 5 again, counting down for one hour using a cell phone. During the test, lens and water were observed, and no bubbles were found to exude, and the lens did not rupture intact. Description watch waterproof superior, you can rest assured wear. Swiss brand of Aobao when Originale original series 3411.131.20.28.30 mechanical men's watch is also sapphire 4, the transmittance test: What is the battery? Eat it? We put the ordinary lens on a test sample table equipped with a sapphire lens to complete the experiment with the naked eye to distinguish the perspective effect. Sapphire lens perspective or outstanding at a glance, Casio selected high-quality mirror, under the incandescent lamp is very clear. In contrast, ordinary lenses with poor see-through effects block the light, and the dial does not look clear enough. This is actually the reason why solar watches will choose with sapphire lens lenses: high transmittance can increase the efficiency of the collection of solar panels, not just the sun, incandescent lamps and other weak light can charge. The collected power is stored in the built-in high-capacity battery, coupled with energy-saving LSI technology and power-saving mode, in order to ensure the watch all kinds of high-power function barrier-free operation, the real long time without having to replace the battery. Light through sapphire lenses, dials, solar panels into electrical energy stored in high-capacity battery. Heberlin - Classiques classic series 12443 / S01 men's quartz watch is also sapphire After the above experiment, sapphire lenses really amazing! The participation of the test of Casio EDI EDIFICE EFB-507, and SHEEN's SHE-4516, two sapphire lenses equipped lenses watch prices are very close to the people in the same price range compared with other products, durable and practical Sex are superior. Two experienced warriors, one after another despised nails, steel files, drill bits, tall water pressure on the merciless laughed once again the great invention of this great humanity, and completely get rid of the fun of changing batteries (Troublesome) and, more ruthlessly, he only sells 2990 (male) and 1790 (female). Casio EDI EDIFICE EFB-507 Casio SHEEN SHE-4516