Watches Review Center Report: What is the performance problems and manufacturing defects?
State Technical Supervision Bureau and other departments on by "some of the goods repair replacement return liability" set in the failure of performance, is the product does not meet safety and sanitation requirements, threatening the personal and property safety of the unreasonable risk, or do not have the product should be available performance, or do not meet the obvious quality conditions.
Such timing devices for clocks, the performance problems that have the same defect in the movement of parts manufacturing, assembly quality is not high, and the user caused by human factors such as stop and go watch, automatic failure, calendar week calendar is not working properly rated the time come to the stage, the travel time can not be corrected over poor conditions fail to express the quality of fault.
Manufacturing defects on the clock is concerned, refers to the movement, parts specifications do not meet quality standards, does not meet requirements, such as tooth shortages, uneven balance wheel is not round, and the uneven surface of the scale, asymmetric non-use case factors caused by the defects.
Why not take the time to adjust to the mechanical watch is not the error?
Mechanical watch accuracy of travel time depends mainly on the frequency generated by the balance spring to ensure stability. As the watch by the machine inside and outside the course of many factors, resulting in harmonic vibration balance spring, so watch travel time errors, carefully adjusted so that only the relative error decreases, and can not be completely ruled out, so watch as long as consistent with the travel time watch travel time accuracy index, is the qualified watch.
Watch why some auto body shall keep on hand?
There are two main roles:
1) If the wearer of the watch automatic day activity is small, especially the President, can quickly use the hands to a wound article body, not to watch the emergence of downtime due to power shortage.
2) When the failure of institutions on automatic articles, you can use manual section, in order to continue to use the watch.
A stop watch is not the occasional failure?
Watch the occasional one stop, but as long as a return to normal after the travel time, whether it be temporary. Because there are some causal factors: such as forgetting the article forgot to push forward after the dial needle shank head, or occasionally in the course of the gossamer hung up by the shock, or will cause such a part stuck shut down, but then can recover in time normal. So watch the first stop is not a problem occasionally, as long as you can in time return to normal travel time, but if often shut down, you need to check the repair.
Travel time clocks be considered fault-tolerance?
Either mechanical or quartz watch has a corresponding quality standards, travel time has a certain error. Clock is a relatively accurate time, absolutely accurate, that the clock is impossible not bad, but they meet the quality standards when the clocks go is qualified clocks. watch factory calibration are required pass validation when sales should again check, meet the standards of the sale, such as individual tolerance, and adjusted after the proof-reading a good sale. Watch the use and use conditions are different, after the individual will use ultra-poor (ie the speed error exceeds the standard), which is a phenomenon arising from the use of the sink, not a failure, that can be adapted to normal. but if the speed of travel time error is too large, and could not adjusted to normal standards, the property can be failure, the need for maintenance.
Watch hours of time they talk about needles, why not point second requirement?
When the clock was installed in the gun barrel, the minute hand is a pipe installed in the sub-round, with each other through cross-round, maintaining a fixed transmission ratio. So the whole point of the clock in when the minute hand with the point requirements. The second hand is mounted on the second axle, is a transmission gear train, there is no direct contact with the minute hand (ie, for the entire time-points, the second hand does not necessarily mean on the scale of 60). All of the toggle time, only struck midnight needles, can not toggle the second hand. Even for the whole sub-sub after the second coat from zero, and Stubbs will also appear after the disharmony. In daily life, "points" of the units have been enough, on second and no practical significance. So in the assembly, "second" pin, you can mount anywhere.
Why quartz electronic watches mechanical watches than standard?
Ordinary quartz electronic watches daily error less than 0.5 seconds, is one-tenth of a few mechanical watches, quartz watches, mainly due to high and swatch quartz oscillator oscillation frequency. High frequency quasi-truth travel time, is that people watch in the long-term study how to improve the process of accurate time and found a principle, the higher the frequency of the oscillator, the oscillation more swatch, stronger anti-interference ability, watch more accurate. Quartz electronic watches the oscillation frequency 32768Hz, faster than the ordinary mechanical pendulum is 1 per second times the frequency of 3Hz. Therefore quartz electronic watches far more accurate than mechanical watches. Another mechanical watch body structure as the watch by gravity effect, the horizontal position and vertical position of the offset will produce potential difference, spring to relax from the tight, torque imbalance in addition to outside temperature, magnetic field, vibration, etc. effects even further increase the number of mechanical watches, frequency, and can not reach the precision of quartz digital watches.
Waterproof watches use precautions?
(1) waterproof apron easy to aging deterioration, to regular replacement, repair or replacement of each.
(2) watch glass damage can affect water resistance of the watch, there should also be replaced damaged.
(3) Do not watch in the water or moisture, the operating handle of the first watch to prevent the water watch into the machine.
(4) handle to push in the end after the first use, the screw head and pay attention to buckle locking handle on the watch, not leaving a gap.
(5) Watches stained water to keep dry.
(6) to prevent exposure to chemical substances watch, otherwise it will affect the case and waterproof apron, reducing water resistance.
(7) Do not watch long placed in the high-temperature (x 60 ℃) and low temperature (-10 ℃) environment.
(8) If the watch appeared in the water aerosol point, should be promptly removed to avoid parts rust.
How to determine whether the accuracy of a watch to go?
(1) If the watch every few days on from time to time, with radio time signals are basically the same, this is an accurate time watch.
(2) watch the beginning of radio time signals from time to time with the same error but running every day. The cumulative increase, but the increase in error per day is the same. If the travel time error does not exceed the quality standards of the watch, which is a qualified watch. If the error exceeds the required standard, you can toggle the speed needle adjustments make more accurate travel time.
(3) If the watch and the radio time signal to the watch, sometimes Pianman, sometimes too fast without a certain regularity, but the error is very small, may be related with the use of state is also a qualified watch. If that error is too large, there is no regularity, can not adjust the needle through the movement speed, the accuracy can not be guaranteed, you need proof to make it through the maintenance of travel time to the required standard.
Why can not wear normal swimming waterproof watch?
Although the general watch seals taken measures to prevent the intrusion of sweat and harmful gases, but not definitely not water. At the same time in the course of the watch will be some ineviwatch phenomenon: every day be set aside needle, handle tube head or handle of the first rubber band will gradually wear. watch glass affected by temperature and thermal expansion and contraction, and the case will make it appear on the gap; back cover of the waterproof rubber ring by the sweat of aging or corrosion, will cause the water watch above the waterproof performance. Thus, the general water watch must not be wearing a swim, take a bath. Is the laundry, washing dishes, cooking should also be careful not to splash water on the watch or the water vapor into the watch, otherwise it would rust water watch parts, affecting the quality of travel time, or even loss of use value.
Why would sometimes appear rusty steel case?
General increase in steel sheet case and will not rust, but everything is relative. Many different types of stainless steel. Discharge of human sweat contains hydrochloric acid composition, form worn on the hand, if the long-term erosion or allow sweat accumulation of acid instead of salt, wipe the dirt, rust case will gradually appear, especially in the low back cover recesses prone. Therefore, the usual maintenance of the watch should be noted, often wipe the dust sediments on the case, sweat and so on. In addition, should be avoided in strong acid, alkali and other occasions to wear watch operation, so that steel will not rust on the case.
Watch as the art of high precision timing instruments and accessories, the correct use and maintenance is essential to extend the service life of watch parts and precision, and beautiful appearance make it more convenient to your work and life.
1, on the appearance of the parts and maintenance
(1) case and strap:
Case watch strap is made of many kinds, such as tungsten alloy, high-tech ceramic, stainless steel, soft fiber, ordinary steel, etc. try to avoid wearing more than or the same with the body of the friction characteristics of hardness, impact. Regular cleaning Case strap
Is also very necessary, additional water, salt water bath, perfume, shampoo, nail polish, nail polish, and some cosmetic products containing chemical substances such as gold plating on the watch and has some corrosion of metal surfaces, should avoid contact.
(2) Glass:
Watch the watch can be divided into synthetic mirror the basic Crystal, mineral glass, sapphire crystal glass. Slightly worse the wear resistance of synthetic Shui Jingjiao scratch-prone, but strong resistance to impact force; sapphire crystal glass, wear out, but more brittle material fear violent crash; mineral characteristics of the glass in between. Even if the wear-resistant sapphire crystal glass objects should not pay attention to the diamond, grinding stones, sandpaper, nail file, mesh stone surfaces, concrete walls and other impurities contained in order to avoid scratching the surface.
2, on the watch waterproof
30 meters Waterproof: is living water, wash your hands, wash your face, rain, cars splashing water.
50 meters Waterproof: for fishing, car washing, showers, swimming and so on.
100 meters above the water: for diving, dive, and so on.
3, on the quartz watch
Replace the batteries regularly and replace the battery time should also replace the seals, and for water testing (usually a time limit of 1-2 years the battery power). Some watchs have replaced the battery prompts should be prompted to replace the battery after 3 weeks.
4, on the mechanical
Maintenance should be 2-3 years 1st movement, such as cleaning oil. If you do not wear the long-term should also be regularly wound, so that rotation of the drive chip.
5, on your watch may have errors
(1) folding watch wearing a sauna, completely wrong behavior.
Because no matter how many meters water depth, not to sauna, the inherent appearance may know the time will not have any problem, in fact, the movement has been compromised. Because the appearance of pieces of the watch is composed of materials of different coefficient of expansion, if the ambient temperature to wear off the watch is greater than or equal to 50 degrees, the watch will have a pressure difference in air pressure, the watch will run out of air When the temperature difference reduction, the outside air and ran back to the watch. Steam bath temperature much higher than in the standard, the watch will run out of air when the humidity is higher than the standard air, and some may not appear immediately when the sheet of water vapor, but suddenly encountered a low temperature, the temperature is higher than the watch standard air will condense on the glass, the formation of water droplets or fog, and steam heat will accelerate the aging of waterproof apron can not properly protect the movement.
(2) recognized by the condensation of water droplets as a sapphire crystal watch mirror;
This approach is unscientific approach.
Because some of the minerals also cause the glass drip condensation, and some drops of water on the sapphire crystal will spread, but the same degree of wear, watch mirror material manufacturers for what will be described, do not use drops to try.
(3) quartz watch battery replaced after no longer waterproof, and travel time was not accurate: this view is wrong.
Zhongfu maintenance equipment very well, replaced the battery in after you use professional equipment by a professional technician to re-suppressed, re-established water and measure the travel time error is in the normal values. So be sure to replace the battery in the professional maintenance station.
(4) with the friction surface, the glass watch wear and other acts confirmed, but we do not recommend customers to experiment with destructive behavior.
While other high-tech ceramics with high anti-wear, but fragile, wrestling and crashing.
Diamond jewelry maintenance rules
Avoid common with other jewelry store, so as not to scratch other jewelry diamonds;
Avoid direct contact with oil, diamonds have a strong affinity for oil, so as not to lose the original luster of diamonds;
To clean diamond can be soaked in diluted liquid soap in a soft brush, brush lightly diamond and child care spaces, then rinse, then dry with a soft cloth water, Note: into the container to be cleaned prevent diamonds fall into the ditch.
Regularly check the diamond is loose, if loose, and immediately returned to jewelry stores, jewelry set by professional chefs will wear a solid before.
Maintenance rules of precious metals
Avoid contact with mercury, lead metal
Avoid contact with cosmetics, perfume, vinegar, juice, bleach, correction fluid and water content of lead, mercury and other chemical elements.
Precious metal products to avoid wearing heavy housework or fine work. Sweat will erode the precious metal body jewelry, it is best to wear the summer of clean water every day.
Avoid wearing while sleeping in order to avoid impairment, complex process models, such as Yi Gu chain is broken beyond repair.
Swimming should be removed with water or water to avoid scale, the occurrence of chemical changes;
18K gold jewelry and other discharge should be put warm water with soap or detergent diluted with a soft brush soaked in the slightly cleaned and tested dry with a soft cloth.
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