Quartz watches and their features. The structure and principle of operation of a quartz watch Working with a chronograph on a quartz watch

From mechanical to pocket

How to wind up a mechanical watch

If you do not know how sensitive your wrist accessory is (how long the power reserve will last), you need to carry out some manipulations. First, make three to five turns of the crown. As soon as you feel that the movement begins to resist the further turning of the crown, this will serve as a guideline for stopping the winding.

Get in the habit of winding up your watch at the same time - in the morning or in the evening. In this, of course, there is no tradition, and this is not a mandatory requirement, which is spelled out in the operating instructions. The fact is that by choosing a certain time of day for winding a mechanical watch, you will do it calmly, without haste.

Remember that with regular winding, your wristwatch will work more accurate and stable. And all because a constantly wound spring makes the mechanism more stable.

If your plans do not include long-term use of the watch, for example, when you leave, and the clock remains at home, or it is time to switch to summer or winter time, you should do the following:

1. If the watch has been wound at least once in the last 24 hours, then the watch does not need to be re-wound.

2. Hour hands should move exclusively forward and only little by little. Thus, the minute tribe will not be in jeopardy.

Do not forget that you only need to turn the crown forward. If this is done correctly, then neither the tribe nor the clutch will wear out or fail. In order for the internal lubricant to be better distributed, you can periodically rotate the mechanism in the opposite direction, which will slow down the process of abrasion of moving parts.

If you do not use a wristwatch for one reason or another, then you need to wind up the watch at least once a month. Thus, the lubricant in the watch mechanism will not stagnate and the mechanism will not deteriorate.

How to properly wind a self-winding watch

If the watch has been motionless for a day or more, then it can be brought back to life with the help of three turns of the crown. If, after the performed manipulations, the watch does not start, then a couple more scrolling of the crown should be done.

The self-winding system is responsible for the quality of work of a mechanical wristwatch throughout the day, but in this case it all depends on how long you wear the watch on your wrist.

How to wind up a quartz watch

Modern quartz wristwatches are not inferior in their stability and reliability to mechanical watches. Therefore, if you are not sure that you will be able to wind the watch every day, then it is better to choose a quartz watch.

Today, quartz watches are produced not only with hands and a display, but also as a chronograph with an alarm clock, digital indication, display backlight, stopwatch and other options. Before launching a quartz watch, the manufacturer conducts testing on a special bench using pulses and checking the integrity of the electronic circuit.

How to wind up a pocket watch

Electricity, increasingly invading all areas of human life, could not bypass watchmaking. With the advent of quartz technology, high-precision watches became available to every inhabitant of the Earth, and the quality of watches began to depend not so much on the skill and experience of people as on the accuracy of the automatic lines. Today, the vast majority of watches produced in the world are precisely quartz. How do they work, how do they work and why more and more people prefer quartz watches?

In a nutshell

The main elements of a quartz watch are an electronic unit and a stepping motor. The electronic unit sends an impulse to the engine once a second, which turns the arrows.

The very high stability of the frequency of the generated pulses, and hence the high accuracy of the movement, is provided by the quartz crystal, from which the watch got its name.

The battery that powers the electronic unit and the engine is designed for several years of operation and eliminates the need to wind up the watch during this entire period. The result is a unique combination of high precision and ease of use.

Sometimes a digital display is used instead of a dial with arrows. We usually call such watches electronic, but all over the world they are called quartz watches with digital display. This name emphasizes that, firstly, the clock is based on a quartz oscillator, and secondly, information about the time is displayed in them in the form of numbers.

In essence, a quartz watch is a mini-computer. Having programmed the microcircuit accordingly, they can be easily turned into a multifunctional device: chronograph, stopwatch, add an alarm clock to them, etc. Moreover, unlike mechanical watches, their cost does not increase so much.

Why does a watch need a crystal

A quartz crystal has unique properties: when compressed, it generates an electrical impulse, and when exposed to an electric current, quartz is compressed. Thus, the crystal can be made to contract-unclench, i.e. fluctuate under the influence of electric current. By selecting the size of the crystal, a resonance frequency of 32768 hertz is achieved.

The electronic unit of a quartz watch consists of two parts. One part, the generator, generates electrical oscillations that are stabilized by a quartz crystal at its resonant frequency. Thus, we have a generator of electrical oscillations, and the frequency of these oscillations is very stable. It remains to transform these uniform vibrations into a uniform movement of the arrows.

The generator generates 32,768 electrical vibrations per second. This is about 10,000 times the number of balance fluctuations in a regular watch. No mechanical device can operate at this speed. Therefore, another part of the electronic circuit, called the divider, converts these vibrations into 1 hertz pulses. These pulses are applied to the stepper motor winding.

The motor consists of a stator, a coil with a winding fixed to it and a rotor - a permanent magnet mounted on an axle. When an electric pulse passes through the coil, a magnetic field arises, which turns the rotor half a turn. The rotor rotates the arrows through the gear system.

How long will "quartz" last?

The wheel mechanism of a quartz watch has the same resource as a mechanical one. The stepper motor will also serve for a very long time. Today you can find workable radios from the 1920s, i.e. the resource of electronic components is also great and has not yet been fully studied. And, theoretically, a good quartz watch should not be inferior to mechanical ones in terms of longevity.

Statistics on the "longevity" of quartz watches have not yet been collected, because they appeared only 30 years ago. But many electronic balance watches, released 40 years ago, still run perfectly to this day.

On the other hand, 100 years ago, watches were inherited because they were extremely rare and expensive. Those days are long gone, today more and more often we buy a new thing not because the old one has deteriorated, but because it is morally outdated. And the period required for obsolescence is nurtured by quartz watches, giving the owner a minimum of trouble.

In our country, mechanical watches are still more popular than quartz ones. But, according to forecasts of foreign experts, in the coming years the situation will change dramatically and in 4-5 years the share of quartz watches will be at least 80% of the market.

In the 21st century, quartz watches are especially popular. They are considered reliable and high quality... These characteristics contribute to their successful use.

Brief description of the offered products

Modern watch models differ in external resemblance to mechanical products. The main differences lie in the features of the oscillatory system and the source of energy. Nowadays, such mechanisms are successfully combined, so if you wish, you can choose a hybrid version of wristwatches.

Development of quartz models hours is held at once in 3 countries of the world:

• USA;
• Japan;
• Switzerland.

It is believed that quartz models should replace expensive mechanical movements that need to be used correctly for guaranteed accuracy.

Quartz watch model

Modern quartz movement ideally combines the principles of operation of electronic and mechanical products. They are universal, multifunctional, therefore they are becoming more and more popular.

Features of a quartz watch

The quartz movement of the watch is complemented by useful functions:

• alarm;
• timer;
• the calendar.

The implementation of such functions leads to rise in price of hours... However, the price is usually justified.

Modern models equipped with a liquid crystal display or a classic dial, and in the first case, the watch will be made like an electronic one.

Scheme of work

The classic principle of operation of a quartz watch is based on the use of modern electronic unit... It sends impulses to a compact electric motor. As a result, the hands move along the existing dial.

Quartz helps maintain pulse frequency

The engine is powered by a classic small battery. There is no need to wind up the watch as the battery is originally designed for a long service life.

Estimated Accuracy

By choosing Wrist Watch often take into account their accuracy. They must show the exact time. It is undesirable for the watch to be constantly in a hurry or lagging behind, it had to be wound up regularly.

Usually quartz watch differ in increased cost. However, the price is determined by the quality and technical parameters of the product.

Quartz watch precision

Knowing that battery-powered watches are called quartz watches, you can focus on their optimal accuracy... High-quality quartz watches guarantee accuracy up to 5 seconds per year, ordinary models - 20 seconds per month. People often wonder if quartz wristwatches need to be wound. Manufacturers say no.

What are the clear benefits?

Modern models have many important advantages. For example, there is no need to constantly wind up the watch, so the risk of unwanted breakage is reduced to a minimum.

The frequency of repairs can also be reduced.

By choosing reliable quartz watch, you can count on their advantages over other models:

• monthly time discrepancy will not exceed 20 seconds;
• wrist models differ simple design;
• guaranteed reliability and durability;
• minimum service life is 3 years;
• celebrated varied assortment commercially available quartz models;
• guaranteed resistance to temperature fluctuations and mechanical factors;
• celebrated optimal price for goods.

Work modern quartz watches leaves only positive impressions.

Quartz watch on a girl

Are there any disadvantages?

The offered products are almost completely devoid of minuses... However, sometimes the battery needs to be replaced. If the clock runs out, the battery must be replaced. Otherwise, there are no drawbacks, because the mechanism is reliable, a durable bracelet and lock are used, and resistance to external factors is guaranteed.

The main task of every customer is to be successful. choose a quartz watch... Be sure to take into account the quality and technical parameters of the products offered:

1. Quality... It is advisable to choose a watch with a metal case and a leather strap. Otherwise, the service life will be reduced.
2. Manufacturer... It is advisable to know the name of the brand, model. It is recommended to choose products from trusted manufacturers. In addition, such brands provide a quality guarantee for several years.
3. Design... It is important to choose a product with a suitable design. They must match the style of clothing.
4. Price... It is undesirable to save on the upcoming choice. Such a purchase requires responsibility and the desire to make the right choice, taking into account the quality of the product. Only reliable watches can work long and successfully.

Correct choice of wristwatches quartz modification is required.

Quartz watch movement

By planning increase service life hours, take into account the basic rules:

1. Moisture protection and water. It is important to protect the watch from moisture, because it can lead to oxidation of existing mechanisms. As a result, the service life will be significantly shorter. Usually, water enters through the case back or crown, after which the functionality of the watch is impaired.
2. Timely battery replacement is required. After the clock hand has stopped, you need to contact a special institution and replace the battery. Otherwise, the risk of damage to the mechanism increases.
3. Cheap Chinese batteries cannot be used for watches. At using quality batteries you can count on the long service life of the product.

Such basic rules must be taken into account for a successful and long use of the watch.

Estimated watch life

It is important to focus on the long life of a quartz watch. Every buyer should think about this, although women value more the beauty of the watch.

It is generally accepted that mechanical models have a higher level of reliability. Modern quartz watches also delight with a long service life, optimal reliability, although they appeared relatively recently. If the watch does run out of battery, it starts to lag behind. If the quartz breaks down, the watch will start to rush. The battery and crystal are replaceable so the service life can be extended.

Correct choice of quartz watches very important. It is recommended to carefully study the available products for the right choice, taking into account the characteristics of the product and personal preferences.

Today, quartz watches are a trend of modernity, a stronghold of reliability and a guarantor of practicality.

The basis of the oscillatory system of a quartz movement is a quartz crystal, and the power source is a battery, which creates a continuous vibration of this crystal when the electronics detects voltage fluctuations and measures the seconds (1 second = 32768 Hz).

The engine, receiving electrical impulses, starts the wheel mechanism, which controls the movement of the hour hands. Thanks to the precise supply of electrical impulses, the quartz watch shows the correct time.

Corrections are made for the time shown by them only once every six months. Over time, the quartz crystal begins to "age", and this greatly affects the mechanisms - they will either start to rush or lag behind.

How quartz wristwatches work

Internal structure

Quartz watches have an electronic heart - a quartz crystal. This microscopic pebble:

• drives a stepping electronic motor that moves the arrows;
• lets the electronic unit know that another micro-period has passed.

As for the mechanical part, it will last a long time, since the few gears do not feel constant stress from the resistance of the twisted spring, and the load on them is short-term.

The quartz movement is based on an electronic control unit. If it breaks down, the device stops working.

Due to the reduced stress on moving parts, manufacturers make accessories from modern weightless plastics. This makes it possible to reduce the weight of the device and increase the battery life. Thus, the task of an electronic stepping motor is simplified many times.

Quartz watches are highly sensitive to water ingress into the case. In order to prevent short circuits or malfunctions, you need to carefully monitor the operation of the seals (gaskets) and replace them with new ones in time.

Even simple models are considered shockproof.

Battery

The energy source is a battery that powers the electronic unit and the electronic stepper motor. The batteries are charged for 5 years, after which they are replaced.

Price

Mechanical wristwatches are a matter of prestige, therefore, they are much more expensive than quartz ones. This is due to the fact that mechanical ones require meticulous manual assembly, while in quartz ones it is automated.

Advantages and disadvantages

• Accessibility - the mechanisms of such accessories are assembled mainly without human intervention.
• Practicality - due to the tiny mechanism, the products are practically weightless. They do not contain parts that are sensitive to external influences.
• Accuracy - time error +/- 20 seconds per month.
• They work properly - a small number of mechanisms are used, and this is a guarantee of uninterrupted operation.
• Resistance to deformation - hitting a hard surface, the work of the mechanisms will not stop, and thanks to the coating of the dial, the appearance will not change.
• Do not need to be started - the mechanisms will not stop until the battery runs out. Battery life is 5 years. Most models today have a battery that lasts for 10 years.

The watch is endowed with a number of built-in functions that people need so much.

In a quartz watch, on a par with the classical method, the digital representation on the screen is used:

• the date and current time are displayed;
• the owner receives the results of his calculations and statistics;
• the device measures the parameters that determine the meteorological conditions and predicts the weather based on them;
• the owner works with an organizer and a service that maintains the same time on network servers;
• thanks to the built-in memory, the owner does whatever he wants with the information provided.

Complex models add GPS, voice recorder, camcorder and other digital devices that easily fit into a compact body.

The only drawback is low maintainability. Automated assembly makes it difficult to manually replace a broken part. It is easier to buy a new product, because its cost, quality and reliability guarantee long-term use with proper care.

How to choose a quartz wristwatch

Style- the appearance is chosen based on the image and style of the person. The universal version is a classic.

Colour- is matched to your color scheme and image.

Body material- a case made of titanium alloy or stainless steel is considered durable, and if it is plastic, then it is better to choose branded manufacturers.

• aluminum - not strong enough;
• nickel - hazardous to health;
• gilded - over the years the gilding disappears and this leads to an unpresentable look.

Dial material- organic glass (PMMA), crystal and sapphire crystal.

Shape and size- circle, square, rectangle or oval. When buying, the size of the wrist is taken into account.

Strap or bracelet- the strap is more comfortable to wear than the bracelet. Over time, the strap becomes unusable. The bracelet is more durable.

Glass:

• plastic - will withstand the appearance of small scratches;
• mineral - able to resist deep scratches;
• sapphire is the most reliable.

Backlight:

• luminescent - a light-accumulative composition is applied to the elements of the dial and provides illumination after a short time in the light;
• electroluminescent - bright and rich backlight turns on when a button is pressed;
• LED - backlight in the form of a small energy-intensive flashlight;
• tritium is an advanced and technically sophisticated backlight of choice for those who value battery life.

Additional features are alarm, stopwatch, calendar, shock resistance, water resistance and accuracy.

Exploitation

Before proceeding with the time / date setting, turn the crown counterclockwise several times and release the thread that is used to secure this crown. If it becomes necessary to return the crown to its original state, then first you need to press the crown to the very stop, then after overcoming the resistance of the spring, tighten the thread clockwise.

On the dial, the days of the week are displayed as follows: MON, TUE, WED, THU, FRI, SAT and SUN.

Quartz watches have a stopwatch (chronograph) function that measures time intervals.

Start the stopwatch - press the "A" button.

Disable stopwatch - press button "A" again.

Reset results - button "B". If in the process of zeroing the chronograph the hand does not return to the position of the figure “12”, then this indicates that the value has been reset.

How to adjust the chronograph:

• put the crown in position III;
• press the "A" button;
• wait until the arrow makes a revolution and fix it near the number "12".

After making the adjustment, the chronograph hand will automatically return to “12” when reset.

Precautions for waterproof models

If a wristwatch bears the WR mark, it means that it does not absorb or let water through. Water resistance is guaranteed by gaskets, which are screwed down with a crown.

A sharp drop in temperature, sweat, dust are factors that lead to poor service of mechanisms.

Therefore, it is forbidden to visit saunas, bathe in the shower, swim and dive in them.

Manufacturers produce special watches for divers. These models have a water resistance WR of 300m and more. This means that you can swim in them, the main thing is not to unscrew the crown underwater. If it is unscrewed, then water will enter the case and harm the mechanism.

If there is a stopwatch, it is forbidden to use it underwater, because water will enter through the side buttons of the chronograph.

Care

The watch is cleaned systematically with a soft material, except for the leather strap. Before starting wiping, the fabric is moistened with warm soapy water, and after wiping, the product is wiped dry.

It is advisable to store the product in the box in which they were sold.

Broken or cracked glass must be replaced, otherwise dust particles entering the device will prevent the chronometers from showing the correct time.

If you are an athlete, then you better choose a watch with a rubber or metal bracelet, as a leather strap is bound to deteriorate from sweat.

Do not drop the device in places that are subject to strong temperature fluctuations, in the sun or near sources of magnetic fields - this will definitely lead to malfunctions.

Malfunctions

Since each model has its own design feature, and there are different properties, sometimes they have to be either prevented or repaired.

Masters distinguish several main types of malfunctions that lead to incorrect display of time, failure of the mechanism, stopping of the hour, minute and second hands:

• oxidation of contacts;
• poor battery power;
• radial touch of the arrow on the glass body;
• damage or violation of the mechanism, which is caused by mechanical means.

This is not the whole list of problems that may arise. Each owner of such a product is bound to encounter problems that he cannot figure out. In this case, he has several options to solve them:

• disassemble and render the internal mechanism unusable due to ignorance;
• to give for repair to the first "master" that comes across, for a minimum fee and without guarantees;
• find a really good master and pay him;
• throw it away and buy a new product.

If for someone a watch is like gloves from a famous phrase, then, in principle, you can not worry. But for some people, they mean a lot, because the price of accessories can be as high as the cost of a car. This is where a professional service center will come to the rescue, which repairs watches and works with any models.

The service center accepts within this category all types of devices that have problems and shortcomings.

The watchmaker will carry out a full diagnostics with you and identify the cause of the mechanism malfunction, after which he will tell you about the work that needs to be done to eliminate it, and will tell you the time required to complete this work.

The craftsmen have special tools and a huge amount of details. Craftsmen repair everything: from broken glass to the working mechanism. True, there are situations when parts are required that private watchmakers may not have, then the best solution would be to take a quartz watch to a professional center.

We figured out what quartz wrist accessories are. Figured out the pros and cons. And now let's dwell on the points regarding the purchase itself:

• Buy only from reputable manufacturers as they look after their brand reputation.
• Pay attention to the warranty period - it must be at least one year
• Take the check, because if something does not suit you or a warranty case comes, then you will definitely need it.

Luxury, part of the image, fashion accessory and necessity - a wristwatch. Today, these accessories are distinguished into two types: mechanical and quartz. Despite the mechanism, each model needs certain rules of care.

What it is?

A watch in which a quartz crystal is used in an oscillatory system is called a quartz watch. For the first time in the world they were released by the American company Hamilton, however, the mechanism, which is the basis of the accessories, was invented more than 90 years ago by W. Morrison. Models with a quartz movement went into mass sale only 30 years after their discovery.

Since the accessory appeared on store shelves, they have gained unprecedented popularity. In the last century, quartz watches with a calculator were also in great demand.

Today, the use of this mechanism has become profitable for the economic factor.

Advantages

• The main advantage of the mechanism is the accuracy of the movement. The discrepancy in time for elite quartz models can be up to five seconds per year. For accessories of the middle class or economy, the monthly deviation in time can be up to 20 seconds, depending on the brand, country of manufacture and operation.
• Unlike "mechanics", the quartz movement does not need to be brought down daily. Manufacturers today produce versions of quartz wrist models, the battery of which can last from three to ten years.

• Another plus of a model with such a mechanism is the price. Due to the automated assembly, the price of a quartz watch is attractive.
• Quartz watches, unlike products with a mechanical movement, are more functional: they can include a calculator, compass, stopwatch and many other useful things.
• Since the body of the company is made of high-strength plastic, children can also use such accessories.

However, among a number of advantages, accessories have their disadvantages. This number includes: low maintainability, fragility and regular spending on batteries.

How does the mechanism work?

The main parts of a quartz watch are an electronic unit and a stepper motor. The first, with an interval of a second, transmits an impulse to the engine, which "pushes" the arrows. The constancy of the generated pulses is guaranteed by the quartz crystal. The crystal, when exposed to current, begins to vibrate and stabilizes the electrical vibrations generated by the generator in the electronic unit.

Sometimes the hands of the clock that are familiar to us are replaced with a display. These models were called digital quartz watches. Such accessories most often add advanced functions (stopwatch, compass, etc.). The companies prefer to make products with an electronic dial in a sporty style, however, sometimes such models can also be found in a classic style.

We bring to your attention a video about how the mechanism of a quartz watch works and the peculiarities of its operation.

Models

Today, a huge number of ladies' models with quartz movements are presented. In any store, even a small one, you will be offered a choice of 10 firms that sell quartz wristwatches on the market. Among the novelties of this season, OKAMI round steel watches are gaining popularity. Their case is made of bijouterie alloy, with a steel bracelet. They are also protected against moisture ingress.

One of the most popular mass brands SUNLIGHT presents metal, ladies' quartz watches in several colors. This model, like many others at SUNLIGHT, is a budget option.

Stunning models are available from brands such as DKNY, Michael Kors, 33 element. DKNY models are manufactured in Hong Kong. Steel body material. The mount can also be made of steel or genuine leather. The case is covered with gilding. In its watches, the company uses mineral glass, which is resistant to scratches, and water-repellent protection.

Another well-known brand is Michael Kors. The models of this company are very expensive, however, the quality of the products is hidden behind the high cost.

The most popular are quartz products MK5076, MK3179, MK5020. This watch has a steel case with PVD coating - super-hard titanium nitride, on top of which there is a thin layer of gold or chromium oxide. This coating makes the watch case even stronger. The protection against water is different for each model. The minimum is 50RW. It will allow you to safely swim in the pool and not take them off before swimming. A number of models also have a chronograph.

The hands of some models are covered with a luminescent coating that emits visible light. This will allow you to see what time it is in the dark.

Models of the 33 element company, as well as DKNY, are manufactured in Hong Kong, however, the country of manufacture of 33 element is Switzerland. The watch case is made of steel, and the case cover is polished steel. Sapphire crystal in some series is framed with Swarovski crystals. There is water protection. The strap can be made of leather or steel. The case of some models is covered with gold plating.

Another company that has firmly established itself in the market is Orient. Models of this company are produced in Japan. Both in terms of cost and quality, the products are not inferior to Michael Kors. Some even compare the movements of quartz Swiss watches with Orient, noting the high quality of the Japanese assembly.

The watch is made of stainless steel with a special protective coating. Some bracelets are made of steel and ceramic. All products also have a minimum protection against water.

Another indispensable Japanese brand is Casio. The Casio A-159WGEA-1E model has been known to the Russian consumer since the early 90s. These are products, the body of which is made of plastic, the mount is made of steel, and its color is yellow gold. The model has an electronic display, water protection. The watches themselves are designed for both men and women.

The model gained great popularity in the 90s thanks to the presence of a calendar, a stopwatch and an alarm clock in the watch. Until now, you can buy Casio A-159WGEA-1E in stores at very reasonable prices.

However, the Casio lineup does not stop there. About two years ago, there was a great demand for the G-shock, which was nicknamed the indestructible model. The products are made entirely of durable plastic with mineral glass. Features automatic LED backlighting, shock resistance, stopwatch, world time function, timer, five alarms, calendar and average speed display.

The company has prepared a whole range of models for children, women, men and adolescents. The main difference from all watches was mostly in color.

Material and color

Plastic is perhaps one of the cheapest materials for creating wristwatches. Most often, products are supplied from China and Japan. The technology by which the plastic is processed has already been brought to perfection. There is an opinion that plastic products will not last long, however, this does not apply to all watches, but only to inexpensive products. In particular, Casio uses plastic in many of its models. Those G-shocks that cannot be “killed” are made of durable plastic.

Alloy or an alloy of both aluminum and zinc is another inexpensive material for making watches. However, due to the softness of both materials, the high strength models do not differ. The production technology of models from alloe is simple: the alloy is poured into molds. As a result, the texture of the resulting material is rather porous and brittle. In addition, a thorough grinding of the resulting product is not possible.

Models made of a more durable material - brass will cost you more. The method of metal processing is more laborious than when working with alloe. However, because of this, the products are stronger and more reliable. At the same time, the price of the manufactured watches is low. One of the disadvantages of brass is the rapid oxidation of materials under the influence of external factors. This process can be avoided by applying a special protective coating.

When choosing a coating, it is necessary to dwell only on high-quality materials. For example, nickel can cause allergies.

The following materials are titanium and steel. The complexity of metal processing affects the final price of products, however, this cost hides quality and strength. Steel products are the most popular models today. The material is distinguished by high strength. In addition, steel housings do not require additional costs from you to purchase and cover the protective layer.

There are two types of steel watches:

1. All stainless steel. By purchasing models with such markings, you are buying a product made of stainless steel completely.
2. Stainless steel back. In this case, only the back cover of the model is made of steel. The case itself in this case can be made of plastic, titanium or other alloy.

Watches made of titanium are not as popular on the market as steel ones due to the fragility of the material. To achieve high strength of the case, companies have to resort to sophisticated product processing technologies. However, as a result, titanium watches are durable and lightweight. But manufacturers also note a number of disadvantages of this material. Models are not made from 100% titanium. The second drawback is that you can never open the case back.