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According to the different types of watches, the mainstream watches on the market can be divided into the following two types:
1. Mechanical watch: a clock adjusted by a mechanical ** device.
1. Manual mechanical watch: the hand-wound movement is used, and the main mainspring of the movement is fully wound by turning the watch, and when the spring is completely exhausted, the gear is pushed to run and the pointer is pushed.
2. Automatic watch: The automatic movement relies on the weight of the oscillating weight in the movement, but the swing of the arm wearing the watch will drive the rotor to rotate, and at the same time drive the main spring in the watch to wind the watch and push the time.
2. Quartz watch: a watch adjusted by an electronic device - a quartz device.
1. Digital quartz electronic watch: The piezoelectric effect of quartz crystal and the combination of diode liquid crystal display are completely completed by electronic components.
2. Pointer quartz watch: The energy of the quartz watch comes from the silver oxide button battery, which provides a specific voltage to the integrated circuit, and then makes the quartz oscillator vibrate through the oscillation circuit and the quartz resonator to form an oscillation circuit source. After the electrical signal output from the oscillation circuit enters the frequency division circuit, the pulse signal is generated through the frequency division, and then the pulse signal is output through the narrow pulse circuit and enters the driving circuit to amplify, and forms a bidirectional pulse signal of alternating changes, so as to drive the stepper motor to rotate intermittently, further drive the transmission gear train, and make the watch hand accurately display the time.
3. Automatic quartz watch: It combines the advantages of automatic mechanical watch and quartz watch. It does not require batteries and the wearer can choose to wind it manually or automatically recharge.
Its electronic quartz mechanism makes it more accurate, with an error of less than 10 seconds per month. Its operating principle is to use the dance of the arm to drive the rotor in the watch to rotate and generate energy to drive the internal micro motor into energy, so as to provide sufficient power for the quartz device in the watch, and the excess electrical energy will be stored by the micro capacitor for later use. When the watch is fully charged, it can run for more than 9 days without wearing the watch on the wrist.
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Watches on the market are broadly divided into two categories: mechanical and quartz electronic according to the movement.
Additional features of mechanical watches include automatic strip loading, date display, multi-hand indication, etc.
There are many additional functions of quartz electronic watches, especially digital display electronic watches, and the decorative functions of the appearance are even more colorful. High value-added items include sapphire glass, ceramic case, tungsten carbide case, diamond-encrusted technology, etc.
In terms of wearing style and requirements, it can be divided into formal watches, casual watches, formal casual watches, sports watches, and professional chronographs. Generally speaking, it is advisable to wear different styles of watches for different occasions. From the wearer's point of view, it can be divided into men's styles, women's models, unisex models, and children's models.
Answer: Xiaozhao).
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1. Mechanical watch.
Mechanical watches can generally be divided into the following two types: manual and self-winding. The power of these two machines** is powered by the mainspring in the movement, which drives the gears and then pushes the watch hands, but the power ** is different.
Hand-wound mechanical watches rely on manual winding for power, and the thickness of the movement is thinner than that of ordinary self-winding watches, so the weight of the watch is relatively light. A self-winding watch uses the automatic rotating disc of the movement to oscillate left and right to generate power to drive the mainspring, but the thickness of a hand-wound watch is relatively smaller than that of an automatic winding watch.
2. Electronic watch.
The basic part of an electronic watch is composed of electronic components, and the working principle of an electronic watch is designed according to the physical phenomenon of "electricity generates magnetism, and magnetism generates electricity". That is, it is converted from electrical energy to magnetic energy, and then from magnetic energy to mechanical energy, which drives the hour and minute hands to run and achieves the purpose of timekeeping.
3. E-paper watch.
An e-paper watch is a watch that is equipped with an e-paper display inside, which can display the time, day, and date. The ways to realize e-paper technology mainly include cholesterol liquid crystal display technology, electrophoretic display technology (EPD) and electrowetting display technology. The electronic watch paper used in electronic paper watches mainly uses electrophoretic display technology.
The display brightness and contrast of the e-paper watch are high, and there is no need to use a backlight method to improve readability.
4. Quartz watch.
Quartz watches use "quartz crystals" as oscillators to control the operation of the motor through electronic frequency division and drive the pointer, and the accuracy of the time is very high. Electronic hand meter. It is a watch that combines an electronic movement with a quartz movement, and has both an electronic display and a hand indication.
5. Optical wave table.
The Eco-Drive radio watch receives the "standard time" radio waves emitted by the tower through the built-in radio receiver and antenna of the watch, and automatically corrects the time and date of the watch by acquiring data such as the time and calendar. The standard time signal is based on the theory of a high-precision cesium atomic watch, with an error of one second in 100,000 years. Citizen's radio-controlled watches are all powered by Eco-Drive technology, which is powered by any visible light source.
As long as there is light, there is energy, and as long as the radio waves can be received, there will never be errors.
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1. Mechanical watch: a clock adjusted by a mechanical ** device.
1. Manual mechanical watch:
The hand-wound movement is used to turn the watch to rewind the main mainspring of the movement, and when the mainspring is completely exhausted, the gears are pushed to move and the hands to time.
2. Automatic mechanical watch:
The automatic movement is produced by the weight of the oscillating weight in the movement, but the swing of the arm wearing the watch will cause the rotor to rotate, and at the same time drive the mainspring in the watch to wind the watch and push the time.
2. Quartz watch.
A watch with an electronic ** device - quartz ** device as the adjustment.
1. Digital quartz electronic watch:
The piezoelectric effect of quartz crystals.
and a two-led liquid crystal display combined with a watch, the function of which is entirely composed of electronic components.
Finish. 2. Analog quartz watch:
Quartz watches are powered by silver oxide button batteries.
Silver oxide button battery to integrated circuits.
After a specific voltage is supplied, the quartz oscillator is activated by an oscillating circuit and a quartz resonator to form an oscillating circuit source. The electrical signal output from the oscillation circuit enters the frequency division circuit and then generates a pulse signal through the frequency division, and then the output pulse signal enters the driving circuit through the narrow pulse circuit to amplify, and forms a bidirectional pulse signal that alternates to drive the stepper motor.
It rotates intermittently to further drive the transmission gear train to make the watch hand accurately display the time.
Selection of watches:
The exterior of the watch can be inspected from the case, glass, dial, and hour, minute, and second hands. The case should be free of sand holes and obvious scratches, with symmetrical edges and corners; The screwing place between the back cover and the upper shell should be tight; The distance between the two rings and the case is equal, and the hole for installing the earrings should be centered at the rear of the case foot, and the depth of the hole should be appropriate so that the ring is not easy to fall off;
The watch glass should be free of defects and scratches, transparent and bright; The three needles are installed correctly, and there should be correct safety clearances between the needles and the needles, the glass and the dial; Dial and hands plating finish.
Well, there are no spots, the dial scale lines or luminous dots are intact; The approximate gap between the handle and the case.
A certain distance should be maintained between the watch hands and the watch glass, the dial and the three hands, otherwise they will collide with each other and affect the normal operation of the watch machine. During the examination, it can be observed by dialing the needle. The method of checking whether the position and coordination of the hour and minute hands are normal is as follows:
Move the minute and hour hands to 3 o'clock and 9 o'clock and observe whether the two hands are at right angles; Dial to 6 o'clock, whether the two needles are in a straight line; Dial to 12 o'clock, whether the two needles coincide.
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1. Mechanical watch.
Watches that rely entirely on mechanical potential energy to provide watch operation power can be divided into three types: automatic winding, manual winding and two winding methods.
2. Quartz watch.
Powered by batteries.
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Watches are classified into mechanical watches, electronic watches, transistor balance watches, quartz watches, light-controlled watches, and diver's watches. Chunjube watch is also called a watch, which means that it refers to a watch worn on the wrist, used to record the time, display the time, the watch is usually made of leather products, rubber, nylon, stainless steel and other raw materials, made into a strap, the watch head that shows the time is tied to the wrist. Since the late 19th century, some people have put the time-recording watch on the belt and turned it on on the wrist, and gradually improved, became smaller and decorated, and the development trend became a watch.
The world's first watch was made in 1868 by Patek Philippe Watches for the Countess of Hungary. But this type of clock was not fashionable at that time.
In 1904, Cartier, a French businessman in the jewelry business, received a request from his good friend Aberto, an aviator, who asked him to help him solve the problem once and for all, so that he could see the time in the middle of the voyage. Therefore, Cartier thought of using a belt and buckle to tie the old pocket watch in his hand, so as to completely solve the difficulty of dismantling a good friend. And this kind of old pocket watch tied to the hand is today's watch.
In 1911, Cartier officially commercialized this type of watch and released the famous Santos watch. Since then, watches have become popular.
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Watches belong to the category of clothing.
Watches, also known as watches, refers to the instrument worn on the wrist to keep time or display the time, the watch usually uses leather, rubber, nylon cloth, mold age stainless steel and other materials to make a strap, and the watch head that displays the time is tied to the wrist, which is one of the smallest, strongest and most sophisticated machinery invented by human beings.
Watch has always been one of the favorite commodities of the Chinese people, since the founding of the People's Republic of China, the country has invested a lot of money in the development of the watch industry, so that the industry has been able to develop rapidly, since then, China's reform and opening up and the development of economic globalization have brought prosperity to the Chinese watch industry, after decades of development, the return code disturbs China's watch industry has experienced the development process of feed assembly, appearance parts manufacturing, product development and the creation of a brand, and has now formed a complete set of watch manufacturing industry, All spare parts except high-end movements can be machined and produced.
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Watches belong to the category of clothing.
Watch, also known as watch, refers to the instrument worn on the wrist to keep time or display the time, the watch usually uses leather, rubber, nylon cloth, stainless steel and other materials to make a strap, and the watch head that displays the time is tied to the wrist, which is one of the smallest, strongest and most sophisticated machinery invented by human beings.
Watch has always been one of the favorite commodities of the Chinese people, since the founding of the People's Republic of China, the country has invested a lot of money in the development of the watch industry, so that this industry can develop rapidly, since then, China's reform and opening up and the development of economic globalization has brought prosperity to China's watch industry, after decades of development, China's watch industry has experienced the development process of feed assembly, appearance parts manufacturing, product development and brand creation, and has now formed a complete set of watch manufacturing industry, except for high-end movements, all spare parts can be processed and produced.
1, Patek Philippe (Patek Philippe 1839 Switzerland, the world's top ten watch brands) 2, Audemars Piguet watches (Audemars Piguet 1875 Switzerland, the world's top ten watch brands) 3, Piaget (1874 Switzerland, top watch brand, the world's top ten watch brands) 4, Jaeger-LeCoulter (Jaeger-LeCoulter 1833 Switzerland, the world's top ten watch brands) 5, Vacheron Constantin ( Vacheron Constantin, Geneva, Switzerland, 1755).
This is a Longines watchmaking traditional series watch, but also a more standard dress watch, this watch is equipped with an automatic mechanical movement, the case is made of stainless steel, with a date display function, the diameter of the case is mm, waterproof 30 meters, reference**15000 yuan (subject to the actual **). If the budget reaches about 20,000 or 30,000 yuan, you can consider Omega, Carl F. Bucherer, etc., after all, they are all so-called luxury brands.
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