To get goldIt’s not necessary to leave the house. It is enough to advertise: - “Buy old radio parts". The samples of the past decades contain yellow metal, sometimes in very decent volumes. By purchasing certain models from suppliers, you can extract valuable raw materials from them.

It may be melted into bullion, but it is better in, for example, rings. There may be problems with the free sale of ingots. "Trinkets" are implemented without difficulty. Which exactly radio parts with gold  it’s worth turning how to process them in order to get the jewel, further.

Gold radio components

Gold deposits are developed if the content of a precious element is at least 1 gram per ton of rock. In one yellow metal microcircuit, from 1 to 5 percent. the findings of the part are enclosed in a ceramic case.

If it is made of plastic, the content of valuable raw materials is less - from 0.2 to 1 percent. In transistors of a precious element, about 2 percent. Of gold  a substrate is placed under the conductor.

But, all records beat capacitors. Their sizes are approximately equal to a three-liter jar. In one such piece, about 8 grams of yellow metal. In addition, also 50 grams. However, only capacitors used in military equipment — generators and radio signal transmission stations — are equipped with expensive fillings.

A little can be extracted from the radio tubes. A precious element is deposited on a grid located near the cathode. The latter, when the lamp is working, heats the grid. Under the influence of heat, it begins to release electrons. This disrupts the product.

Therefore, and it is necessary gold radio plating. Spraying from it is also found on the legs of objects of consecration, but this applies only to old samples, tens of years old.

Several microns of precious raw materials were previously applied to connectors, all kinds of semiconductors, such as diodes, optocouplers, thyristors, zener diodes. Least of all gold can be found in resistors. However, in some of them, along with silver, there is a little yellow metal.

These are the standards by which they were made. radio parts in the USSR  in the 70s, 80s of the last century. Gold is also in modern radio components. However, to mine  hundredths of a gram from an item for which tens, or even hundreds of thousands of rubles, were paid, is inappropriate. Let the old parts come into play is another matter.

Most often gold radio components, found in old-style computing devices, switching devices, radio engineering. The electronic computing units of the SM and CE series should be of interest to applicants in the first place. In one such machine from 0.2 to 10 kilograms. Some military equipment boasts the same.

Beginners will benefit from a list of more than just generic names radio parts equipped with golden  "Stuffing", but also specific designations of models. So:

Transistors KT201, KT203, KT3102, KT301, KT306, KT605. All of them are equipped with legs of golden color.

KT802, 808, 803, 809, 812, 908. We need samples released before 1986. In later models, gold was not used.

KT907,904, 606. Outwardly, there are no gold elements in them, there is no yellow color. However, valuable raw materials are actually present.

But KT602, 604, 611, 814, 815, 816, 9909 have golden cases.

Relays RES9, 10, 15, 22, 34, RPS24, 32, 34, RKG15.

Chips K142EH, K50, K56PY2, AOT101, K145, also known as the "white spider."

Chips K133, 134, 178, 249, 564, 565, K140, 157, 217.

Diodes series D226 and the like.

Capacitors Km3, 4, 5, 6, 10, 11, 12, 13, 14, 15, 16, 17, 52-1, 52-7, K53-1, 53-6, 53-7, 53-10, 53 -15, 53-16.

Resistors PTP1, 2, PLP2, 6, PP3-40, 3-41, 3-43, 3-44, 3-45, 3-47, KSP1, 4, KSU1, KSD1, KPU1, KPP1, SP5-1, 5 -2, 5-3, 5-4, 5-14.5-15, 5-16, 5-17, SP3-19, 3-44.

Connectors SNP59-64V, SNP59-96R, GRPPM7-90Sh, RPPG2-48.

TV1, П23Г, Пг2-5, 2-6, 2-7, 2-10, П1Т3-1В, PR2-10, PKN8, ПТ33-26, ПП8-6, ППК2 switches.

How to get gold from radio parts

Let's try to figure it out how to get gold from radio parts. The solvent of the precious metal is a mixture of hydrochloric and sulfuric acids. Proportions - 3 to 1, respectively. It is necessary to mix liquids of a certain density.

Sulfuric acid should be 1.8 grams per centimeter cubic, hydrochloric acid - 1.19 grams per centimeter cubic. The separation of gold from the base will not pass completely if you do not heat the solution to 60, 70 degrees Celsius.

Only in the heated mixture is it necessary to lower the part. After, a small amount of nitric acid should be added to the container. This will result in a solution known as “royal vodka”. It dissolves almost all elements, including gold. A microcircuit, or other element, melts in a mixture, which then should be precipitated with a reducing agent.

You should take into account the number of radio components and the content of valuable raw materials in them. Usually, one and a half liters of nitric acid is required on 200 to 300 grams of the surface coated. The technique should be disassembled as much as possible, glass elements, areas without precious spraying should be separated. They will “take” the chemical solution onto themselves, then more will be required. Lowering into the environment is desirable only the details themselves with yellow metal.

At room temperature, without heating, metal can be isolated from a mixture of acids by electrolysis. It is only suitable for working with copper and brass parts. A current with a density of 0.1 to 1 A / dm2 is passed through the solution. Lead or iron is used as the cathode. The gold separation procedure is completed if the current strength begins to drop sharply.

You can buy ready-made compounds for the separation of precious metals in special stores. It is also possible to establish cooperation with small enterprises in the chemical industry. Many Internet sites offer reagents, delivering products to your home. Methods gold extraction from radio componentsdescribed above are applicable at home.

Gold extraction costs from radio components

One liter of reagents costs about 300 rubles. 1 gram of allocated gold is valued at approximately 2500-3000 rubles. To get about 3 grams of yellow metal from KT605 transistors, for example, 100 parts are required. Each of them contains 27 micro grams of valuable raw materials.

You can buy transistors at 15-20 rubles apiece. Spend about 2,000 rubles, get about 8000-9000 thousand. Calculating the profitability of the enterprise is required. "Recycling" some radio components is unprofitable.

Quality watches - what should they be? Of course, the accuracy of the mechanism is very important, because we rely on the performance of the clock, with their help we calculate our time. But this is not the only thing that distinguishes a reliable model from the one about which we can say "they threw money in vain." The quality of the watch depends on the material of which the case and glass are made. Strong and durable can be not only the original Swiss watches, but also their good copies, sold in the Market-time.ru online store.

What is glass on a watch?

• The clockwork is extremely fragile and susceptible, therefore, it needs reliable protection against dust, moisture and other influences. One of the main "defenders" of the internal filling and the dial is glass. Watch Glass Material  may be different.
• Plastic or organic glass. It is made of silicate. Such material lends itself well to cutting and takes any shape. Plastic glass has a low cost, so a watch with such a coating cannot be expensive. Silicate is often used in creating sports watch models. It is a strong and shock-resistant material, but it has a significant drawback - it is easily scratched and may become cloudy over time.
• Mineral glass is the most commonly used. It is hard enough, not susceptible to scratches and clouding, but not as durable as plastic watch materials. Mineral glass can be recognized by the Crystal Glass label. It is used for models of watches in the middle price segment.
• Sapphire crystal. Of course, in the end, watches from natural material will not work, because here it is not about natural sapphires, but about artificially grown breed. Its processing requires serious labor costs, which affects the price of the final product. Such glass, which is marked Sapphire Glass, must be treated with care in terms of mechanical shock, but it is not subject to clouding or scratching. In expensive Swiss models use only the best materials for the manufacture of watches.  So is sapphire crystal. It is also used in quality copies, which can be purchased on the Market Time website.
• Combined glass is a material for sports watches, where strength and hardness are important. It is labeled as Sapflex or Hardlex.

What is a watch case made of?

Simplest watch case material  - this is ordinary plastic. Of course, a pretty good mechanism can be inserted into it, as, for example, the Casio brand does. But in this case, high-quality plastic is used. Inexpensive, but not very durable watches are obtained from alloy - an alloy of aluminum and zinc.

Quite expensive watches, with a cost price of $ 100, are made of steel or titanium. These are the most popular materials today, characterized by high strength, hardness and aesthetic appearance. Even very expensive Swiss brands create their works of art from them. To determine, what material is the watch made oflook at the markings. The inscription All stainless steel will mean that the entire body is made of steel.

The most expensive watches are made of precious metals - silver, gold and platinum. Such models are very expensive, and no longer serve as devices for recognizing time, but as a status and luxury accessory.

Contrary to popular belief, the price of a watch depends not only and not so much on its “heart” mechanism, but on the “shell”: case and bracelet. If the mechanism is not unique, especially complex, then it is the watch case that most affects their price.

The case is not only the appearance of the watch, for which, along with a certain legend about them (including the history and image of the brand, the seller’s assurance of the accuracy and reliability of the mechanism, etc.), the buyer pays money. The material from which the watch case is made determines how long this watch will last. After all, a faulty mechanism can almost always be repaired, and a case that has been worn down to holes can only be thrown away.

The choice of material for the watch case is always the result of a compromise between price and quality. What does the buyer need from the watch? Attractive appearance, the ability of watches to maintain this look for many years, safety for health (although buyers rarely think about this yet). But what, from the manufacturer’s point of view, does the watch’s ability to maintain its appearance for a long time, not being covered by scratches and scuffs? The harder case material, usually at a higher price, the use of a more expensive tool and the additional time required to process it. As a result, a higher price for watches.

The main body of modern watches are made of four types of materials. The most common and traditional is brass. The popularity of brass is explained by its relative cheapness and ease of processing. However, brass also has disadvantages. It oxidizes in air, quickly corrodes when interacting with a person’s sweat, leaving black stains on the hand. Therefore, a body made of brass requires a protective decorative coating. Coverage solves some problems, but at the same time adds new ones.

Sooner or later it is erased, in some places the metal of the case begins to appear through it, and the watch takes on a very unsightly look. To restore its former beauty is no longer possible. In addition, some coatings, giving the watch a beautiful appearance, are unsafe: nickel used in many types of coatings can cause allergies and various skin diseases. Because of these shortcomings, a part having constant direct contact with human skin, the back case of such watches is made not of brass, but of steel. Any watch in a brass case, despite the type and quality of the coating, is able to maintain its original appearance for no more than five years.

Nevertheless, today most of the watches produced in the world are made of brass, especially for watches with a retail price of $ 20,000. Sometimes, on brass watch cases, the manufacturer places the mark “base metal case” or “brass”. Cases of almost all domestic watches are made of brass.

In recent decades, a serious competition for brass in cheap watches is zinc-aluminum alloy alloy. "Alloy" in translation from English means "alloy", that is, the alloy in general, and not a specific material. We, according to the tradition established in watch circles, will use the word "alla" to denote the material used for the manufacture of cases.

Shells from alley differ from brass not only by the material itself, but also by the production technology. In the manufacture of brass bodies, the blanks for which are produced by hot stamping, a large proportion of machining operations (milling, boring, drilling, accurate and e) are quite time-consuming and in which up to 50% of the metal goes to waste. The casting method used in the manufacture of cases from mallows makes them much cheaper than brass ones, since not only waste is reduced, but production is also greatly simplified: several dozen blanks are cast at one time, requiring only a little fine-tuning and polishing to become a watch case . This technology allows you to quickly master the release of new models of cases: for this it is enough just to make a new injection mold.

Naturally, cheapness has a flip side. Alloy is quite soft material, the watch is easily scratched and wear out quickly. A body made by casting contains many tiny pore air bubbles, and it is impossible to polish its surface to a quality such as brass or steel. The alloevic case without fail requires the use of decorative cover, the pros and cons of which were mentioned above.

The shortcomings of the mall do not allow you to make expensive high-quality things out of it, but it turns out to be insignificant in the manufacture of cheap mass products aimed at a poor and undemanding buyer. Today, the cases of almost all watches with a retail price of up to $ 1,520 are made from mall. A case made of alley can be recognized by two signs: it is slightly lighter than brass and, as a rule, has a slightly "wavy" surface.

In recent years, watches in steel cases have become increasingly popular. This is not surprising: from the point of view of the buyer, it is the steel case that has the optimal price-quality ratio. Steel is quite hard material, it is much more difficult to scratch it than brass or alla. A polished or polished stainless steel case looks great without requiring any protective or decorative coatings. The steel grades used for the manufacture of watches are hypoallergenic; such watches do not cause skin diseases. Even an old scratched steel watch can be restored attractive appearance just polish the case.

Steel watches are somewhat more expensive than brass. Steel is much harder than brass and harder to process. Although special, relatively soft alloys are used for watch cases, the materials themselves and their processing turn out to be expensive. The retail price of steel watches very rarely drops below $ 40. As a rule, the inscription "All stainless steel" is placed on the back cover of the steel watch (do not confuse the steel back case with the inscription "stainless steel back"). The vast majority of “white” watches made in Switzerland and Japan are made of steel.

About one price niche with steel watches is occupied by watches with titanium cases. This metal is called "winged" because It is actively used in aviation and rocket science due to its low weight and high strength. Titanium itself is quite fragile, and titanium alloys, which are more ductile, are used to make watches. Titanium, like steel, does not require coatings; it is hypoallergenic and does not cause skin diseases. Watches made of titanium have two advantages over steel: they are very light and, as it were, “warm” to the touch. The last sensation arises from the fact that titanium has low thermal conductivity. Most titanium watches have a specific matte gray color, but some manufacturers make polished titanium cases, and then an interesting combination is obtained: the watch looks like steel, but weighs almost nothing.

Perhaps the only drawback of titanium watches is that small surface scratches easily appear on them.

In addition to low weight and low thermal conductivity, titanium has one more interesting property: if two pieces of titanium are squeezed together, they can “weld”. Therefore, a watch with a titanium case and a titanium case back must sometimes be opened, otherwise the case may “grow” to the case.

A watch is a kind of microcosm, with its own laws and regulations. Sooner or later, each of us wonders: “I wonder what my watch is made of.”

We think about the origin of everything that surrounds us, especially if this item makes our life more convenient. Our article today is, of course, devoted to watches. And mainly to what they are made of.

Look at your watch right now. The case and the mechanism inside it can be made of a variety of materials. It's time to delve into the intricacies of creating watch cases!

From time immemorial and to this day gold remains the most noble material. Watch cases and spare parts were made of gold. at the end of the 13th century, only the watches then were large - gold was used in the tower clocks of churches, monasteries and castles throughout Europe, the hands and marks of those watches were covered with gilding. Later it was the turn of pocket watches - after the onset of 1500, they met everywhere, at the same time playing the role of expensive jewelry and practical things.

It is worth mentioning one very important feature of gold:  Pure gold is an extremely soft metal. Therefore, keep in mind that any use of the phrases “golden watch”, “watch made of gold” and the like in this article implies a watch made of gold with the addition of other metals. The reason for this is simple: a watch case made of pure gold is not able to maintain its shape; it is easy to remember and deteriorate with everyday use. To increase the hardness, various elements are added to gold, which also change the color of the metal to white or pink.

Watch house Girard perregaux  (Girard Perego) was one of the first manufacturers to create a gold watch. This happened at the request of the German emperor in 1879. The main politician in Germany asked the Swiss masters to make rust-resistant watches designed for long trips to the sea. The request was satisfied with the release of 14-carat gold watches.

Gold was generally held in high esteem by company representatives. Girard perregaux. Particular love was awarded 18 carat pink gold, with a content of 20.5% copper and 4.5% silver. It is the addition of copper that allows gold to find a pink hue.  Not only cases, but also hands and parts of watch mechanisms Girard perregaux  were made of pink gold. In the 1880s, the watch house Girard perregaux  surprised everyone with a rose gold tourbillon, which has forever become a classic of watchmaking.

Bestselling white gold comes into being by adding palladium, a noble metal of the platinum group, or silver to pure gold. The amount of gold in a single alloy depends not only on the customs of a particular company, but also on the legislation of the country in which the company operates. So, watches from 14 carat gold are produced for the UK, USA, Germany, because in these countries gold of up to ten carats is not legally recognized as gold and cannot be put on free sale, like gold. Gold of lower carat indices more easily takes on the desired shade, this type of gold is also more resistant to hostile environmental influences (scratches, bumps).  However, gold of the highest standard is still valued more, because it will take more time to process such a capricious material. Accordingly, the price of the final product also increases.

Citizens of India and the Middle East prefer watches from 21-22 carat gold. China opted for 18-carat gold watches. By the way, 18-carat gold is the chosen material for the leading Swiss watch houses today.

Switzerland sets the tone in the production of any watch. This statement also applies to the production of watches from gold, each year 500 thousand gold watches appear from factories around the world, 90% of this amount is produced in Switzerland. For those who like to translate everything into other quantities, we report the following fact: 90% of the above 500 thousand gold watches equals thirty (30) tons of gold. Gold watches account for 95% of Switzerland's total watch exports.

Most famous distinguished Swiss company Rolexselling 200 thousand gold watches annually!

Gold watches were in demand until the beginning of 1929, when the economic crisis broke out in the USA and Canada, also known as the “Great Depression”. This crisis forced the watch industry to abandon the use of gold in watches, choosing in favor of a much cheaper material - steel. The crisis affected not only the countries on the other side of the ocean, but also Great Britain, Germany, France, which could not but affect the sales of watches. The Great Depression reduced the demand for expensive goods (including watches), manufacturers had no choice but to cut jobs and lower prices for already released watches.

In 1920, the supply of gold and silver Swiss watches (the main markets were just the USA, Canada and France)  accounted for 51% of the total Swiss watch exports. In 1930, this figure dropped to 29%, and in 1935 to 5%.

The times of financial difficulties also brought with them a natural desire to hide their wealth - beautiful gold watches of impressive sizes acted on people like a red rag. It was the desire to preserve their property and not be robbed during a normal street walk that made people who did not completely lose their fortunes look for ways to disguise themselves. The watch industry came to the rescue - before the onset of 1930, gold watches with a case diameter of 35 mm did not surprise anyone, and after the onset of 1930, the watch “lost weight” to 28 mm, besides ceasing to be gold. Steel watches did not attract attention and looked strictly. By "steel watch" we mean a stainless steel watch.

The advantages of stainless steel in 1912 were realized by the master of the English factory Anfield, a famous manufacturer of the same name rifles (Royal Small Arms factory, Enfield). The watchmakers arrived a little later, but here the circumstances were different.

The Great Depression lasted 10 years, the mass production of gold watches at this time was completely stopped. Rare, single orders were still being fulfilled, but overall, gold completely disappeared into the shadows.

It is important to understand the pricing process of gold watches:  To create one such watch, the master manually made a case from a single piece of gold, in which simple tools helped him. He made the golden parts of the mechanism, polished them to the desired state, soldered the necessary parts to each other. In such watches it is impossible to meet gaps and joints, roughnesses. The production of gold watches was not in a hurry, technology and skill were handed down from father to son, from generation to generation. With steel, this was not so.

A watch case made of steel cannot be made manually with simple tools - the hardness of the material is several times higher than that of gold. That is why special machines began to appear hastily in the shops of watch manufactories, their power made it possible to process solid stainless steel. Working with gold on such machines is unacceptable, because after each session the machine leaves a large amount of production waste, the so-called "chips". A piece of gold costs much more than a piece of steel. The price of a steel bar was just ridiculous compared to a piece of gold, a large amount of waste did not bother anyone, and the production of steel watches was established.

The transition to the use of steel saved the watch industry from death in the 30s of the 20th century. Steel watches even began to produce such eminent companies as Vacheron constantin  and Patek Philippe.

The economic crisis of the 30s ended, the war ended. The 50s and 60s of the twentieth century brought relative stability to mankind, and with it the watch industry began to recover from difficult times.

The 70s were a test for manufacturers of mechanical watches, gold was again forced to lose ground - the “quartz crisis”, which began many years of domination of a completely new type of watch, made itself known.  Quartz watches attracted a low price, because their cases were made of cheap but practical materials - steel and polymers. Quartz watches managed to displace their mechanical fellow tribesmen from the world market. But these times have come to an end. After all the crises and troubles, the watch industry stepped into the 21st century, surprising with the variety of materials used to make watches.

Titanium watches have long ceased to be a rarity. Titanium is a lightweight metal of high strength, a watch made of titanium impresses with its performance. The titanium case resists severe damage, while it is lighter than any steel “classmate”. Titanium costs more than steel, but you have to pay for convenience!

In fairness, it is worth noting that titanium watches can be offered at very different prices.  Nice quartz watch price Boccia titanium circle-oval  unlikely to leave anyone indifferent. Bold and interesting Perrelet Turbine Erotic Limited Edition  provide the owner with attention, and high-tech titanium watches Frank Vila Cobra Grand Sport  They have stylish carbon inserts, their body shape really resembles a cobra.

The materials of some watch cases are amazing in the best sense of the word, they are so unusual! Swiss company Romain jerome  produces watches for those who are not averse to putting on a wrist a piece of the greatest events in the history of mankind. This becomes apparent when looking at the model. Steampunk metal chrono  - the bezel of this watch is made of steel, lifted from the board of the sunken Titanic! Clock Romain Jerome Steampunk Metal Chrono  were released in 2012 in a limited number of 2012 units, in honor of the centenary of the wreck of the famous ship.

The watch is not only dedicated to the landing of a man on the moon, but also carry a piece of this satellite of the earth! Pay attention to the dial of this model - it is made in the image and likeness of the lunar surface, there are copies of craters on it, while the entire surface of the dial is covered with real moon dust. The watch strap contains fibers of astronaut suits, which fully justifies the company's official slogan Romain jerome  "DNA of famous legends." Number of hours Romain Jerome Moon Dust Black Mood Chrono, of course, it is limited - only 1969 products saw the light of day, since it was in 1969 that man set foot on the moon.

So, the materials used to create the cases can be different: classic gold, practical stainless steel, unusual materials. Of course, all this applies only to watch cases. We will definitely talk about the materials of straps and bracelets another time.

Choosing a watch, we do not always think about what their case is made of. Meanwhile, the appearance of the watch, and its durability and reliability, largely depend on this. Do not forget that the watch case material is in direct contact with the skin. This means that people prone to allergies should think that this material should be chemically neutral. Of course, the price that you have to pay for the watch depends on what the case is made of.

For the cheapest products, the case is made of plastic. As a rule, this is a fairly simple and inexpensive plastic. Most of these watches are made in China. It is clear that an expensive and high-quality mechanism is unlikely to be used in a cheap case. This means that the plastic watch will not last long. Although, of course, there are exceptions - for example, everyone knows a Casio watch. A significant part of them is presented in a plastic case, in which, nevertheless, a reliable and durable mechanism is installed. Despite certain exceptions, preference should still be given to products in the case not of plastic, but of more durable and high-quality materials. One of them is the so-called alla, or alloys of various metals. As a rule, these are alloys based on zinc and aluminum. Metals are a fairly durable material. But speaking specifically about zinc and aluminum, none of them is notable for high hardness. So it’s hard to call hulls made of alloy. Another disadvantage of this material is its uneven surface, due to the peculiarities of the alloy manufacturing. The fact is that when the body is cast in a mold, small air bubbles get into the metal. As a result, its structure is, to a certain extent, porous, which does not allow grinding metal smoothly enough. Problems with the operation of a watch with a case made of alloy can be the appearance of scratches, damage to the ears for the bracelet. Their advantage is an affordable price. But it is also not the best choice for those who want to buy reliable and durable watches.

More durable material, from which the body of products is made at a price of $ 100, is brass. On the one hand, the cost of brass is low, and on the other, casting a body out of it requires more time and effort. But it will be much more durable. A disadvantage of brass is its ability to oxidize upon contact with air. The oxidation reaction is even more intense with the participation of human sweat. Therefore, after wearing these items for a long time, dark spots remain on the wrist. Manufacturers solve a similar problem by applying a protective coating to the surface of the product. However, this may cause additional difficulties. If nickel acts as such a coating, it can cause allergic reactions or even skin diseases. The best option is to apply a nickel coating to the outside of the case. And the part that comes in direct contact with the hand is not made of brass, but of stainless steel. The execution of a brass body with a coating is also possible, which does not cause negative reactions. One of the newest types of such coatings has become a composition called IPG, or Ion Platinum Gold. This is a method in which gold is sprayed onto the base material. And between it and the base a special layer of hypoallergenic material is provided. This coating, in addition to its hypoallergenic properties, is also characterized by high wear resistance. The brass case can be considered the golden mean that allows you to make a purchase at an affordable price, and at the same time, be sure of the durability of the product. You can recognize such a watch by the inscription on the case of the type Brass or Base metal case.

Wrist watches are considered more expensive, prestigious and beautiful, the case of which is made of titanium or steel. The hardness of these metals causes certain difficulties in their processing. If we are talking about the watch case, it has to be processed mechanically, which is quite laborious. Therefore, the price of such products starts at $ 80, and can reach 300 and above. But such a case is difficult to scratch, it does not oxidize, does not deform. It is on the basis of stainless steel that the world-famous Swiss watches, as well as a number of Japanese brands, are being produced. When buying such products, it is worth paying attention to the fact that a number of models are made entirely of stainless steel, and for some of them only the reverse side is made.

Much less often than stainless steel, titanium is used for the watch case. This is a material that is difficult to process, but at the same time, is quite fragile. Many people appreciate a titanium watch for its lightness, as well as for being very pleasant to feel on your hand, as the case heats up quickly. But, choosing such a watch, it must be borne in mind that they are made not of pure titanium, but of its alloys. Scratches easily appear on their surface.

The most expensive watches are made in a case of silver or gold, often such products are additionally decorated with precious stones. Their value is added up not only on the basis of the price of the mechanism and precious metal - the brand name also increases it. Such products serve, rather, not to determine the time, but as a prestigious and status accessory. And also, to a certain extent, and as an investment.