Now watch consumer has a misunderstanding , that is, when consumers tend to buy watches watches will focus on price , travel time precision, the appearance of style and appearance quality . As long as these conform to mind , would think to buy a piece of the Heart watch . Consumer awareness of this fact is to ignore the quality of a watch and the future impact of the biggest factors in life - watches waterproof . View current media reports, consumers complain about most aspects of quality watches is one of waterproof watches bad . Not to mention hundreds of dollars to spread the goods, that is several hundred dollars of domestic brands watch , import watch a few thousand dollars , several million high-end watch , as leading watch watches water affects the quality of movement even when retirement is Occurred , the economic losses to consumers to the product itself, but also brought the loss of brand reputation on . Watch the factors leading to not a lot of water , but the key point is whether the time of manufacture in the watch waterproof watch should be waterproof performance.
So , the modern watch company in the production process is how to know whether a waterproof watch then ? Water watch in accordance with existing international standards of iso2281-1990 , and water watches in China Light Industry Standard qb/t1897-93 ( equivalent to using iso2281-1990) requirements, manufacturers must watch the water temperature changes and resistance to mechanical stress -resistant properties, performance or resistance to pressure Pressure -resistant performance ( resistance to pressure and resistance to water pressure can check one) testing , performance indicators have reached the standard , and you can watch with a waterproof performance that such form is called water watch . Instead , you can not call water watch . Resistance to air pressure test is to put pressure waterproof watch tester containers , under normal pressure to bear to watch again 2bar ( equivalent to about 2 atm) of air overpressure. If the case of air leakage rate of no greater than 50 micrograms / min , the target is qualified . The hydrostatic pressure test is to put pressure waterproof watch the water container Tester ( watch completely immersed in water ), atmospheric pressure and then put 2bar to watch the pressure for 10 minutes and then test to see watch glass by the condensation Whether there is fog on the coagulation properties to determine whether the resistance to pressure compliance . Only from the targets, in strict accordance with international standards, the production of waterproof watches the water resistance is not a problem. Because people wear a watch daily activities (including recreational swimming) , watches, water borne pressure is less than 0.5bar, waterproof sheet waterproof capacity margin is still quite large . But later experts found , or a waterproof watch some flooding occurred in the course of the phenomenon . The reason is watch the one hand, the use of reason . For example: watches use a longer time, more than the waterproof durability, wear watches diving or severe water sports , watches, shocked by the external shock , watch repair , battery replacement, disassembly lead to decreased water resistance ; the other hand, Resistance to pressure performance test is similar to water resistance performance test , is not exactly the same test, after all, the two test environments are essentially different media , anti- air leakage pressure test hydrostatic pressure test is not equal to the amount of water leakage . Select only done a performance test of water pressure -resistant form , if only placed in the water a short time there is no problem , but if a long time , can not guarantee that the phenomenon does not appear water immersion . Given the various reasons , iso international standards organization member watches ( China is an important member of this organization ) agreed to revise the existing water watch international standards , to the water watch plus " insurance. "
Currently , Member States are to modify the content of international standards for consultation , the majority of Member States to increase the following three "insurance" content:
1 , the water resistance test into a performance test will be done by the selective test .
2 , the water resistance properties of the pressure test by the 2bar to 3bar.
3 , the water immersion test ( to watch entirely in the 10 ± 2 cm deep in water ) to extend the time from 1 hour to 4 hours .
If the "insurance "content is passed, an international standard , then the water produced by the new standard form, the water resistance will be improved, waterproof watch will also be extended shelf life . So , consumers should pay more attention when the watch is waterproof . Water , can protect the value of your watch ; not waterproof , they may soon make you watch the value failed to be implemented.
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