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G-Shock Bezel



G-Shock bezel is a totally unique product on the market of the timepieces.

The inventor of G-Shock watch Kikuo Ibe



wanted to create a watch that could not be destroyed. He claims that he threw away hundreds of watches before he came up with a design that served as a basis for all the G-Shock models of Casio watches.

The principal engineer of Casio invented his "impossible to destroy" watch in 1983 when most designers favoured slim watches. However, the G-Shock line of Casio watches not only has proven to be reliable in the toughest environment but it has also become a stylish fashion icon.

G-Shock watch is a dream product. It never breaks and will serve you for a very long time.

What makes it such a miracle — is a G-Shock bezel!

The face of the watch is embedded into a polyurethane fixed bezel which like a capsule keeps the watch safe in its tissue.
The idea of the bezel was derived from the tennis ball. The inventor saw a girl playing with a rubber ball and it made him realize that the only way to protect a watch is to place it into a similar environment.
Thus G-Shock Bezel was born.

What makes it so special?

Thanks to G-Shock Bezel the watch can withstand a fall from a 10-meters height.
This bezel is so good that you can play hockey with it and the watch will survive.
The shape of the bezel protects the body of the watch from external impacts. There are only four points that connect the watch
with the bezel and the polyurethane protects the glass and the mechanism.The shape of the bezel defends the watch regardless of the angle of the fall.

G-Shock Bezel is a culture that has its following. It is a look into the future based on the best traditions of watchmaking.
G-Shock promotes active life-style, durability, elegance and innovation.

While G-Shock Bezel will last you many years — it is a "wear and tear" product, especially as it serves on the front line defending your precious timepiece.

If you want to ensure that your G-Shock Casio masterpiece serves you lifetime you need to look after it and replace your G-Shock Casio Bezel in good time.

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Watch Capacitor



In the second half of the XX century among other great events the world saw the birth of a new generation of watches — the watches that required capacitors.

Mechanical watches rely on you winding the mechanism on a daily basis, whereas in automatic watch a complex system does it for you while you are on the move. Quartz watches use energy from batteries (e.g. lithium coin battery) which lasts several years and then stops unexpectedly.

Kinetic movement is a new generation technology

First developed by Seiko, it was then adopted and used by other watch manufacturers under such names as Autoquartz, Powermatic etc.

Fully charged capacitors in the men's models can keep the watch going for up to two weeks even if you do not wear them. Ladies' watches can work on a fully charged capacitor for up to a week. These clever watches would warn your when they need charging by slowing down their second-hand by approximately two seconds.

In 1986 at Basel Fair Seiko unveiled its first Kinetic model. The movement was produced under the trial name "AGM" and became the first watch in the world to convert kinetic movement into electrical energy.

Now kinetic technology is a synonym of ecological production, quality and comfort for the consumers. First commercial model "AGS" was made by Seiko in 1988.

The year 1998 saw the appearance of Kinetic Auto Relay that can be dormant for up to four years. The magic here is that the watch seemingly "goes to sleep" if do not wear it but the moment you give it a gentle shake, it immediately "wakes up" to show you the exact time.

A real masterpiece Ultimate Kinetic Chronograph was unveiled in 1999 and combined the best of Seiko technology.

At BaselWorld 2005 Seiko presented ? Kinetic Perpetual watch which combined comfort and longevity of kinetic movement as well as an eternal calendar that shows exact dates up to the year of 2100.

Now Seiko also have got their Kinetic GMT watch which is perfect for travelers. The hour hand can be set without disturbing the accuracy of Seiko's unique Kinetic movement, and as Kinetic is powered by the movement of your body, this streamlined and refined new timepiece offers the international traveler a unique combination of elegance, powerful design and ‘set & forget’ convenience.

Solar-powered watches

Light-powered (or solar-powered) watches were developed in 1976 and run exclusively on light as a power source. The technology is now known as "Eco-Drive" and can generate power from any source of light, whether it is natural, artificial and not very bright. Citizen has a wide range of exclusive solar-powered watches that work on Eco-Drive Technology.

What is a watch capacitor?

Capacitors in wrist watches are rechargeable elements that store and release energy to facilitate kinetic and solar-powered/light-powered movements of your timepiece.

Capacitors can store energy from a variety of sources of current, and in a watch, this amount of current is often very small.

It is commonly perceived that capacitors are perpetual — after all, they are rechargeable and that makes them ecologically friendly. Both Seiko and Citizen sell their watches as not having a battery. However, nothing lasts forever, not even capacitors. After about 7-10 years of a watch life they need to be replaced.

Capacitors store generated power for short term in the electric field of insulated plates and use. They do not contain chemicals to facilitate power generation. This makes them more environmentally friendly compared to the standard batteries. As opposed to capacitors rechargeable batteries stores its potential energy in a chemical form.

Eventually capacitors lose their ability to store power and become faulty

If you notice that your capacitor in Seiko or Citizen will store energy for less time, your watch stops immediately when you take it off the wrist, stops at night or charges too quickly when it stops — this may indicate that your energy unit, i.e. the capacitor, is defective or exhausted and needs replacing. It can happen due to the lack of use, excessive use or even extreme temperatures. If you want capacitor in your watch to last a really long time you must use it all the time, keep it constant temperature and humidity level but even then it will not last you forever.

Fortunately, replacements are easily available both for Seiko and Citizen capacitors.

Have a good week and keep up the good time with our Wrist Watch Revival Club
at GMT Classics

How to choose a crystal for your watch

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There are currently three types of crystal available on the market: acrylic (plexiglass), mineral and sapphire.
All of them are designed to protect your watch face from external adversities, such as dust, humidity and shock.
Yet there is a considerable difference in how each type of crystal addresses these issues: the choice of the correct type for every watch is very specific and depends on many factors.
Besides, crystals can either bring out the best in your watch or completely destroy its appearance.

Let us consider each type of crystal by its own merit:

Acrylic (or Plexiglass).

These crystals are made of transparent thermoplastic and they are very economical.
Their flexibility allows manufacturers to bring them to different shapes with relative simplicity.
They scratch easily but the scratches can be easily removed by polishing the surface of the crystal.
They are very difficult to break or shatter.
With time these crystals lose a degree of transparency and suffer reduction in clarity. For that reason are usually used in cheaper models of watches.

Acrylic as a material was created in 1843 and is strong, tough and lightweight. Compared to glass it has a lower density but a higher impact strength. Acrylic has been used in aircraft manufacturing and up to date is still an important material across many industries, including the police sector.

Wrist watches with acrylic crystals can be advised to people who lead an active life style. They are good for sport, travel and camping.

Mineral

Mineral crystals represent the most popular and widely used type of watch crystals. To imagine what is the essence of the mineral, think of a glass window.

These crystals are harder to scratch than acrylic and they do not lose transparency over a period of time.

They look more "upmarket" and are used in more expensive watches.

You do have to take more care over mineral crystals as they break easier than acrylic. I sell hardened mineral crystals that are less likely to break.

The oldest piece of glass that was discovered by archaeologists stretches back to the year 35 BC. However, the earliest description of its manufacturing process dates back to the year 650 BC.

In any case, ever since the first watch was made and up until the discovery of Acrylic the face of every timepiece was covered by a mineral crystal. At present 90% of all watches are made with mineral crystal.

So, if you want to be traditional — mineral crystals are for you.

Sapphire

The sapphire crystal is nothing but synthetically produced crystalline aluminium oxide.The creation of synthetic sapphire, which is used in some more expensive watches is attributed to Parisian chemist Auguste Verneuil who was the first to discover a successful method of manufacturing synthetic gemstones. The Verneuil process is still widely used in the modern industrial crystal growth technology.

Its principal characteristic is its hardness, which is 9 on the Mohs Scale of hardness. Only diamond is harder (10). That makes sapphire highly resistant to scratches. However, it is precisely this feature that makes it brittle. It shatters much easier than acrylic or mineral crystals.

Due to the complexity of the manufacturing technology these crystals are very expensive. They are normally used in premium and luxury models of timepieces. The first sapphire watches appeared in the 1960s.

It is virtually impossible to see the difference between a mineral and sapphire crystal with the naked eye. They look almost identical. However, if you hold both crystals in your hands for several seconds you will feel that sapphire warms up slower. If you touch both crystals with the tip of your nose, you will feel that sapphire is considerably colder than mineral.

Sapphire is trendy and deluxe. It is very expensive and will give your watch face a shine and clarity for many years to come.

Have a good week and keep up the good time with our Wrist Watch Revival Club
at GMT Classics