The term watch glass refers to the transparent covering over the face of a watch. There are a number of different materials that are used to make watch glasses. They are generally made of one of three common materials depending on the make, uses and quality of each particular watch. Each material has it’s own advantages and disadvantages, so it is worth understanding the differences. Sometimes the glass is referred to as the crystal, this is not to be confused with the quartz crystal inside of a lot of watches which regulates the timekeeping.

Acrylic Glass
The cheapest glass is actually a plastic. Acrylic plastic is tough, flexible and transparent. It is not likely to shatter as it is very light. The downside is that it may scratch easily. The scratches can be removed, it is advisable to consult a jeweller about the best way to proceed. Childrens’ watches often have an acrylic glass as they are unlikely to be able to break it even if they are not as careful as they could be!

Mineral Glass
The most common form of glass is mineral glass. This is made by using heat or chemicals to treat ordinary glass in order to make it more scratch resistant. If the glass does become too scratched it will need to be replaced.  Unfortunately this also has the affect of making the glass more likely to shatter. Occasionally when a watch glass shatters small shards of glass can lodge themselves into the workings. If this happens then the cost of repair is likely to exceed the value of the watch. Most watches, however, do not end their life in this way; so there is no need to be unduly worried. But it is worth being careful if your watch glass does shatter in order to prevent this from happening.

Sapphire Crystal
The most desirable watch glasses are made out of either synthetic or genuine sapphire. Commonly synthetic sapphire is used. This is made out of crystalised aluminum oxide, it has the same physical properties as the natural gem frequently used in jewellery but without the colouring. It is the most expensive way to create a watch glass but the advantage is that the glass is incredibly durable. Sapphire rates 9 on the Moh scale, (that is the scale that measures the relative hardness of all materials) and is just behind diamond which measures 10. Of all the glasses it is the least likely to shatter or be scratched. If anything you should be more concerned that your watch may scratch another surface! Sapphire crystal is one of the features that pushes up the price of high end watches. This is due to the value of sapphire and partly because expensive tools that use diamonds to cut and shape the sapphire have to be used to make them. Premier brands such as Seiko and Citizen watches often use sapphire glass for their watches.

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Many people say to me that they could not live without their watch. But it was not until the last century that this became a realistic possibility for the majority of people. Timekeeping has been possible in a fairly accurate way since the 1400s but it was not until the 1800s, when watches began to be mass produced rather than made by hand by skilled watch makers, that this became accessible technology. The trend of wearing wristwatches began in the trenches in WW1 as they were a more practical accessory than a pocket watch. Since then the technology has developed in leaps and bounds.

Mechanical Watches

The first wristwatches were mechanical. They are powered by the energy stored in a spring which is used to move a number of weighted wheels, or gears as they are also known, that turned the hands. This technology came from spring-powered clocks that were around as early as the 1400’s; it began to be used for smaller watches in the 1600’s. These types of watches need to wound regularly; meaning that as well as being prone to losing time they rely on their user to remember to wind them. For these reasons mechanical watches are generally collectors items or created primarily for nostalgic purposes rather than for practicality.

Kinetic or Automatic Watches

The modern variation of the mechanical watch that has recently seen a revival is the kinetic watch also known as an automatic watch. These watches have a similar internal structure as the mechanical watches but rely on the movement of the wearer to power the spring. They are often less reliable than other forms of power for watches; there is a greater likelihood that they will lose time, in some cases a few seconds every day. They have made a comeback in certain designers ranges such as Police and Seiko. This is partly because they never need to have a battery change and also the mechanics allow for some additional stylistic features like transparent backs through which the mechanism can be viewed.

Quartz Watches

In 1969 the first quartz powered watch was available on the market. Quartz has special properties so when it is shaped in a certain way and subject to an electrical field it will bend. When the field is removed the quartz generates an electrical field of its own as it moves back to its original shape. This property is known as piezoelectricity. Due to this property quartz crystals can be used to regulate the movement of an electronic oscillator. This energy and movement powers, controls and regulates the hands of the watch. This revolutionary technology is now the most common form of power in wristwatches. It is also the most reliable timekeeping method which also comes at a low price.

• types of time keeping

Mechanical watches for most people just use it to tell the time, the quartz watch is not only extremely accurate, and swatch quality, reasonable price, no wonder the quartz watch critically acclaimed, as most people choose watch preferences.

Many people do not even know watch also is divided into quartz watch and mechanical watches! And the mechanical watch needs regular maintenance, its repair techniques also need strict requirements, that doesn’t like quartz watches almost only stereotyped replacement parts.

However, why do so many people still indulge in mechanical watches? Why spend the money a motorcycle or car to buy people do not appreciate watch, or even dismantling watch day and night and studying watches knowledge never tired of it? The reasons are really many that for everyone are not the same; we may try to explore several different angles.

Gains and losses in the world do not care, but things changed and it! This is a philosophy of life. If they do not take care themselves neither eat nor drink, of course, killed! Because of the food and water to sustain life is the starting point of life. Artificial watch can not be free from the earth’s survival law. If the man-made objects can be free from this law, then it really unimaginable and also not practical. Watch naturally follow that the law of nature—including maintenance. But because of automatic mechanical watch has this life similarity of living body with many people on the Machine watch resulted in an mutual cherishing emotions, or even as treating their children or lover-like feelings, It is very different in treatment of mass production quartz watch of damaged disposable feel.

Quartz watches do not need rely on manpower. It regular move on the dial, And so to say, automatic mechanical watches only the human watchmaking; traditions and culture heritage, each piece of quartz watch just industrialized mass production of icy objects.

Close dependent relationship between machine watch and wearer is very delicate. From a technical point of view, the two are entirely dependent on the relationship because no one wears, the operation of automatic mechanical watches can not turn. Whether or not the chain, or whether the self-winding, watch is a watch every move in the daily life gaining momentum. Completely rely on machines running the watch the human. Such as time-consuming to take care of your mechanical watch, you can imagine into the true feelings and a way of loving life, and many fans are keen on the machine watch feeling, keen to maintain.

Of course, there is any other relationship between the wearer and mechanical watch, you and wristwatch just as the same as you and your car! Which better hand-gear and automatic gear? Although the automatic transmission may be more practical, but I like manual control, because it brings me directly to the mechanical touch .For example, one of the characteristics of mechanical watch is voice; the chains by the sound card, each watch movements “clatter ” sound have different taste. Sophisticated watch movements, multi-functional complex watch movements, the clatter is more regular and quieter than the cheap watch, Especially your hands on the chain, you will feel close contact with the crown between thumb and index finger, it make you an ineffable Heartfelt.

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