Water Resistant
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Water Resistant
How Water Resistant Is Your Watch
Given the kind of technology which made it possible for watchmaking companies to produce highly precise watches, it is not that mind-boggling if they are able to come up with timepieces that can work perfectly well even in unusual conditions, say, under water.
In fact, there are a lot of watches out in the market today claiming that they are water resistant. The operative word here is claiming. Because even if it is feasible to create a watch that can still run as usual even underwater, you cannot be entirely sure that the watch you are getting is indeed water resistant as advertised. Unless they are submerged when displayed in stores, there really is no proof that these watches are water resistant. Or is there?
Essentially, there are ways in order to distinguish a water resistant watch from a normal one. Appearance-wise, you have to first check out the watch's lining. For a watch to keep on running even underwater, it has to be watertight as well as airtight. This is why it is important to examine the materials used in the lining. Materials commonly used in the lining are rubber or nylon gaskets. These gaskets are put into place so that water can be prevented from entering the watch. While you are it, confirm how thick it is. Of course, the thicker the gasket is the better.
No matter how gaskets are skillfully placed, they are still not that reliable. Depending on the water pressure and the number of times the watch will be worn underwater, it may not be able to block the water for a long time. This is why applying a lubricant is a must. A lubricant or a sealant, as experts call it, is applied inside the edge of the watch to solidify the gasket making it more enduring and at the same time guarantees that the parts necessary to keep the watch working are not reached by water.
Apart from the lining (and the lubricant), watches which went under a leakage test (a way to see how long can the watch work while submerged and how deep one can use the same watch) bear a water resistant mark that is normally located at the back.
Based on the leakage test results, the watch will display the water resistant mark along with some specifications such as numbers quantified in meters. For most people, the number in meters is the watch's limit when in underwater. For example, if the watch says water resistant 10M, it means that the wearer can wear the watch as long as he or she does not go deeper than 10 meters. While it is understandable why people make this assumption, it is not exactly what the number is for. The number known as the depth rating gives the wearer a ballpark figure of the watch's level of water resistance. Watches with a depth rating of less than 30 meters are okay to be exposed to water once in a while. On the other hand, if you are interested in getting a watch which can be worn while swimming or doing other water sports, it is best to get a watch with a depth rating higher than 100 meters. If you are going to be scuba-diving, it is strongly recommended to get a watch with a depth rating of not less than 200 meters.
If you want a watch that is no doubt water resistant, you can always go for a luxury watch. You would notice that most luxury watch brands have released a series or two which are specifically water resistant.
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The author loves to read books and watch movies. She has been writing online articles for over 2 years. Where To Buy Watches
Why is a water droplet bigger on a less resistant surface, and vice-versa?
I'm wondering why that if you dropped a water droplet on a specially treated surface, the droplet is smaller than a normal water resistant surface?
the specially treated surface interacts with the droplet's surface tension causing it to become reduced and less able to maintain a nice big drop. The special treatment of the surface is said to be a "wetting agent". These wetting agents are used for example in a dishwasher to prevent droplets from forming on glassware as the water dries. Wetting solution is used by contact lens wearers to make the lens get coated with water more easily, quickly and evenly. Photographic film and picture processing uses a wetting agent before drying to eliminate water spots.
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