With the warming of the consumer market watches , watches have been out of simple timing functions to show a personal taste and a status symbol by the growing number of consumers love and favor . But these, a large part of the consumer knows very little about watches . So here we are, will you tell us something about the basic knowledge and how to watch a simple differential clock quality.
1, classification and main characteristics of watches
Watch now divided into two categories: mechanical watches and quartz electronic watches .
(A ) mechanical watches
(1 ) General Mechanical Watches
(2 ) calendar , dual calendar mechanical watches Mechanical watches + calendar = general body or two calendar institution .
(3 ) Mechanical city clock , pendulum clock , wall clock and so on .
(4 ) Automatic watches = ordinary watches + automatic body
(5 ) calendar automatic watches ordinary two- calendar watch or a pair of calendar + calendar + Auto body body
(6 ) multi-functional complex watch : In addition to the calendar , or double calendar and automatic , there are stop seconds , the stars , moon phase , leap year , month , month, ranging from functional
Main features:
(1 ) movement most of the metal pieces .
(2) The vibration system is generally balance springs , vibration frequency is generally 18,000 times / time ~ 28 800 times / when that pendulum swings per round springs component 5 to 8 times ; very small number of watches with the vibration frequency of 36,000 times / hours ; clock and pendulum floor clock with gravity as a vibration system, 1 per swing .
(3) The low frequency , travel time less accurate than quartz electronic watches .
( 4) power with Clockwork , elastic components, made of stainless steel , using hand or automatic article body article body a wound , the winding of the elastic potential energy into kinetic energy ; winding relax, the elastic Potential energy into kinetic energy , the supply balance springs component in the oscillating process of energy loss , and guarantee a certain swing .
(5 ) quartz watch more than the total number of parts . Ordinary mechanical watch about 130 or so ; calendar or two calendar automatic watch about 200 . Many and complex machining operations , about 1000 ~ 1500 .
(6 ) difficulty of assembly and maintenance of larger than the quartz electronic watches
(B ) quartz electronic watches
(1 ) Analog quartz electronic watches : time that the same way as mechanical watches can also add a calendar or calendar and other features double .
(2 ) shows the type of electronic quartz watches : time representation with the figures show that more features can be arranged .
(3 ) Hybrid quartz electronic watches and clocks : a mixed quartz electronic watches and clocks, electronic clocks + quartz = pointer display type quartz electronic watches . The two movements together , each in common with a battery or a battery , instructions and figures to show the time pointer .
Main features:
(1 ) systems use crystal oscillators . Vibration frequency is generally 32 768 times / sec
(2 ) travel time and high precision : day and generally 0.5 seconds or 15 seconds / month; precision years and poor in 1 ~ 2 seconds .
(3 ) movement can design and manufacture of small thin : minimum movement of 3.5 orders; thinnest movement is 1.2 mm .
(4 ) less movement parts , Analog quartz electronic watches mechanical watches is about 30% ; show -style zero- less quartz clock and watch , no metal transmission parts , only a few buttons , spring and screws .
(5 ) Energy Batteries : chemical batteries and physical batteries .
(6 ) assembly and maintenance more convenient.
2, the composition and role of the clock
Watch the movement and appearance of two parts :
Movement - the body produces accurate time , structural diversity . Different brands of watches and clocks using different or the same movement ; even the same movements , different brand , select quality indicators movement is also different. Watch the world producing countries move towards standardization, standardized , serialized , there is a professional factory producing movement brand watches for the production plant ; only a few brand-name watches for manufacturers , has a long history of maintaining a unique style , still with a self-made movement . Movement is also not allowed to take-away , to prevent counterfeiting phenomenon.
Appearance - the movement to protect the user wear normal work and includes the use of drum shell, the back cover , handle first , dial , pointer ( display ), strap, mix them together in beautiful, durable. Watch more requirements for dust , water , or sealing .
Identification of watches and shoddy goods
Modern clocks are precision machinery industry and microelectronics industries crystallization . Polish brand watches in the world , the less there are thousands . According to their quality and price points , is that high , medium and low categories , but also really well-known within the hundred . Currently displayed name brand watches have been 1 to 2 years of history .
1 , brand counterfeiting :
Generally occurs in high-grade fake brand name brand , because the availability of high profits . In trademarks, the original studio pieces of letter products , manufacturing was the same, rough look impeccable . With packaging, manuals, birth certificate and complete everything . But the watches and brand selection is not supporting the movement , or poor grade parts selection . Lower cost of production of the brand . Often in internal sales , prices are much lower than the original brand , but still highly profitable. In some watches do not detect sound irregularities in the city and shopping malls have sales , allowing users to suffer great loss surgery . In the domestic market once there fake Rolex , fake radar, watches and other false FIYTA .
2 , the appearance of counterfeit items
At present the appearance of items in the watch in the proportion of high prices . If the French production of " Cartier " watch , price 3.52 million yuan . Xiang natural diamond , 36 carats, 60,000 yuan per carat basis, the optical coordinates of the more than 200 million diamonds . Therefore, the appearance of counterfeit items should be reproducible , mainly the following aspects:
(1 ) natural diamond factory , artificial diamonds, diamond (glass drilling ), etc. to identify and counterfeiting : all objects of natural diamond factory is the most hard , as 10 hardness ; man-made diamonds one of 8 to 9 ; diamond ( Glass drilling ) than the hardness of natural and man-made diamonds is low, and fragile . Artificial diamonds and diamond prices are cheap , each piece is only 0.1 to 0.2 yuan . Therefore, the purchase of plants with natural diamond watch , be sure to pay attention to authenticity was not to fall for . Testing when necessary to the relevant departments .
(2) K gold plating , gold plating acid identification and counterfeit : K gold, gold-plated , gold -plated surface of acid yellow colors are not easy to distinguish , but also easy to fake . If K gold shell : have 10K gold , 14K gold , 18K gold and other differences , in the absence of case detection equipment is difficult to distinguish . Some even pretend Dou K gold plated shell shell . In addition, the gold shell thickness of the plating layer is difficult determination . 3 -micron gold-plated watch some marked , not the actual even 1 micron , watches, more than a year using a gold to black , with rust in the ability to lose , so the user in the purchase of gold watches should explicitly ask , because the mall You Provisions do not guarantee the appearance . Of course the expensive gold K shell will not dare to counterfeit, but the proportion in gold than have others.
(3 ) fake glass watch : Watch currently in use , as described earlier , there are three glass : glass , ordinary quartz glass, sapphire crystal glass . Confusing and difficult to distinguish the quartz glass and sapphire crystal glass . Both in quality and price vary widely . Sapphire crystal glass was once known as " never wear glasses " , now changed to " hard to wear glasses . " Its price is about ten times the conventional quartz glass , so only high-grade watches in the middle of rock crystal with Lan Fu . Sales over the past fake Rolex , the watch glass into ordinary quartz glass . Ordinary quartz glass and sapphire crystal glass in the absence of equipment can be used when testing a simple method to determine : Keyong drop of water on the watch glass plane, then to them an up , where the water was not dispersed by a small ball for the sapphire crystal Glass .
3, movement of fake and shoddy
Movement has produced the world's state of Switzerland , Japan, China and other countries. According to the movement of production and sales , from the brand with the tribute to determine the counterfeit watches .
(1) Where the imported Swiss watches , which uses the movement must be a Swiss production . Used in machine movement is found in Japan , China or other countries produce movement, the watch is fake and shoddy goods .
(2 ) the import of Japanese watches , which uses the movement must be produced in Japan . The movement is found for the Swiss , China or other countries produce movement, the watch is fake and shoddy goods .
(3 ) domestic production of watch movements used in very complex , with Switzerland , Japan, and domestic movement, key in the selection of pretending to watch the movement of some shoddy sale , shoddy , Mongolia cheat consumers .
4 , to prevent counterfeiting and safeguard the interests of consumers
China's accession to WTO , the countries followed by the production of watches a lot of channels to enter the domestic market more competitive , should take effective measures to resist the invasion of fake and shoddy goods , reduce the risk of purchasing quality products . The following aspects must be strictly controlled to prevent counterfeit and shoddy goods, safeguard the interests of consumers .
(1 ) control supply channel and product quality of domestic production enterprises
(2 ) to strengthen the market supervision of product quality watches and clocks , regular testing or specialty store watch commercial sound products , announced the quality of sampling , and to inform the production and business units , failure of Kushiro on the watch limit or prohibit the sale of straighten out .
(3 ) receiving consumer complaints about the quality watches made of quality accreditation and the quality of notary .
Consumers to protect their own interests on the authenticity of the purchased goods with suspicion or mistrust of Quality Supervision, Inspection clocks can be detected to stop and issue inspection certificates.
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