How to make a mechanical watch shock proof, anti magnetic and waterproof

The most important thing for a watch to be waterproof is the sealing ring, or O-ream, or I-ream, which is made of rubber, nylon or Teflon, which forms a waterproof seal on the glass, the rim, the case back and the joint between the jaw and the case. The degree of sealing is the waterproof level, and the common marks are: 30m, 50m, 100m, 200m, etc.

In addition, the thickness and material of the case determine whether a watch is safe to wear underwater. As a rule, watches labelled with water resistance must reach two atmospheres (2 bar). The detection method is:

Hold pressure at 2 bar for 60 seconds and the air flow should not exceed 50 micrograms.

Why isn't it labeled "completely waterproof"? According to the Code issued by the Federal Trade Commission of the United States, a seller of a watch may not mark his watch as "fully water-resistant". Even if the watch is designed for deep-sea diving, it cannot be claimed to be completely water-resistant.

In other words, there is no such thing as a watch that is absolutely water-resistant.

Precautions during the use of water-resistant watches:

Wearing a waterproof watch for swimming chooses a 100m waterproof watch, which is safer. Although the ordinary 30m waterproof meter can withstand 3 atmospheres, its detection premise is under laboratory conditions, that is, the temperature is 20-25°, and the water and the meter are stationary. When swimming, the watch and the water are relatively moving, with a certain impact, and the pressure between the water and the watch is often much greater than 3 atmospheres.

As a result, the watch is susceptible to water ingress.

The waterproof meter does not allow hot baths and saunas. In addition, according to the principle of thermal expansion and cold contraction, each component of the watch is different due to different materials, shapes and sizes, and when the temperature changes greatly, the amount of expansion and contraction deformation is different, and it is easy to produce tiny gaps, causing water to enter the watch. Occasionally, there is no water ingress in the watch, which means that the watch is waterproof, but in the long run, it will accelerate the aging of the waterproof parts of the watch and affect the normal service life of the watch.

The watch that has been flooded is still waterproof when it is tested on the waterproof machine, which is caused by improper use, and the cold and heat (such as exposure to the sun or the air-conditioned room with low temperature) cause the waterproof parts of the watch to be instantly deformed, and the water vapor enters, and the environment is normal, and the waterproof parts return to normal, and still have the waterproof function.

The waterproof, shockproof, and anti-magnetic of the watch is the stove Kai dress ().

a.The characteristics of the Ansun Book in all aspects.

b.Characteristics of the social aspect.

c.Temporal properties.

d.Technical aspects of the hidden foci.

Correct answer: d

Avoid placing them next to magnetic clasps on televisions, radio horns, backpacks, or purses.

Instructions for the use of automatic mechanical watches:

1. Wear it normally to avoid vibration.

There is an appropriate amount of activity to keep it up and function properly (it is normal for the wearer to walk slowly when the amount of activity is low). Please rotate the handle 20-30 times when using it for the first time to make the initial winding of the mainspring), although the watch is shockproof, it is easy to break the tip of the pendulum shaft or the journal of the wheel train when the external impact is strong, and it can also make the fast and slow needle vibration affect the time.

2. The watch is waterproof.

Try not to take your watch to swim or wash clothes, but once it rains or gets wet, don't pull out the watch handle to adjust the watch at this time, but wipe it off immediately. Because the handle head is more protruding, try to avoid it being bumped, and pay attention to the gap between the handle head and the case, too small will affect the operation, and too much will affect the waterproof performance, but also unsightly.

3. Watch cleaning.

In general, 3 5 years of oil sludge washing, there are the following factors to determine:

The sealing problem of the watch, the degree of wear (wear and tear) of the watch, quartz watches can extend the oil washing cycle, men's watches or pocket watches can have a longer oil washing cycle than thin or women's watches.

4. Do not use the watch for a long time.

If it is not placed in the suitcase with mothballs and sanitary balls, it will cause the watch oil to deteriorate and the watch machine will not be accurate.

Mechanical watches are generally magnetic.

Mechanical watches of better quality (at least swiss made) have a certain degree of anti-magnetic ability, as long as they are not close to a strong magnetic field, generally no mobile phone or headset will let it be magnetized.

Then there are anti-magnetic watches, which are generally of two kinds:

The first is to wrap the entire movement with magnetic insulating material, but because its sealing cannot reach the absolute value, the antimagnetic is only about 100 gauss, and the best Rolex is only 1000 gauss, of course, this is enough to resist the magnetic field of most daily life.

The other is to directly use magnetically insulating materials to make movement components, the more famous is the Omega 8500 calibre series, which can resist magnetic fields above 15,000 gauss, even if working in special field environments, it is rare to encounter magnetic fields beyond this level.

Watches are metal, and metal is easy to magnetize. If the watch is magnetic, the watch will go faster, for example, 1-2 hours a day, because the hairspring sticks together, reducing the swing frequency. Therefore, wearing mechanical watches needs to be kept away from magnetic fields, such as TVs, mobile phones, stereos, microwave ovens, hair dryers, etc.; Magnetization of watches is very common, and the solution is not complicated, you only need to take the watch to a professional maintenance point and use the machine to demagnetize.

Shock-resistant watches are those with shock absorbers built into the movement. The shockproof device is composed of a shockproof seat, a shockproof bowl, a pendulum drill, a supporting drill, a shockproof spring and other components. If it exceeds the range that the shock absorber can bear, it loses the shock protection function, which will break or bend the swing journal, and even cause the hairspring disorder.

In severe cases, it can also cause damage to other parts. Therefore, do not wear your watch for strenuous exercise or labor. Water-resistant watches make use of a high finish and a tight fit to improve water resistance.

What is a waterproof and shockproof watchA shockproof watch is a shockproof watch that has a shock absorber inside the movement. The shockproof device is composed of a shockproof seat, a shockproof bowl, a pendulum drill, a supporting drill, a shockproof spring and other components. In order to make you have a more detailed understanding of the anti-vibration table, let's talk about the working process of the anti-vibration device, please see Figure 29.

When the watch is impacted by external force, the balance wheel shockproof bowl pendulum drill and the arc supporting drill will immediately produce position movement, the pendulum shaft along the radial drive of the shockproof bowl, the shoulder of the pendulum shaft and the inner end of the shockproof seat contact, forcing the shockproof spring to bend, and then absorbing the inertia, offset the impact of the pendulum journal and the pendulum eye and the pendulum drill, and the pendulum journal is not easy to break. When the impact has passed, the spring bounces and returns to its original shape, forcing the balance to reset. Although the shock absorber bears some of the more violent vibrations, its shock resistance performance has a certain range.

If it exceeds the range that the shock absorber can bear, it loses the shock protection function, which will break or bend the swing journal, and even cause the hairspring disorder. In severe cases, it can also cause damage to other parts. Therefore, do not wear your watch for strenuous exercise or labor.

What is a waterproof watchA waterproof watch is a waterproof watch that has been sealed at the handle, back, and glass of an ordinary mechanical watch. After the glass of the waterproof watch is injected and returned to the outside of the car, it is placed in the case stop, and the watch glass is tightly supported outward with a tight ring on the inside of the watch glass. Here, a high gloss finish and a tight fit are used to improve water resistance.

In the fitting place between the stem and the stem tube and the pressure between the stem tube and the case, the interference of the sealing gasket or a trace amount of adhesive are generally used to improve the waterproof performance. The case of a waterproof watch fits the back cover tightly against the gasket, which is sealed between the back cover and the case because the gasket is subjected to uniform vertical pressure. The waterproof watch has a certain waterproof performance, but with the extension of time, due to the aging and deterioration of the sealing gasket, the wear and tear of the stem and the head tube, etc., the waterproof performance will gradually be lost.

Xingli is perfect.

Concern. Watches are generally anti-magnetic. It refers to something that is not very magnetic, and if it is a magnet, it will not work.

However, you don't want to stack it with something magnetic, and you're generally fine. If the watch is put together with a large magnetic thing, the time will generally be inaccurate, and if it is serious, it will not go.

In the national standard, the anti-magnetic and shock-proof performance standards are expressed by the "residual effect", which refers to the difference between the instantaneous daily difference of the watch before the test and the instantaneous day difference of the watch after the test.

Shockproof: When the watch accidentally falls from a height of 1 meter to a level hardwood surface, the residual effect does not exceed 2 seconds for quartz watches and 60 seconds for mechanical watches.

Anti-magnetic: When the watch is incidentally exposed to a magnetic field with a strength of 4800A m, the residual effect of quartz watches does not exceed 30 seconds, and the residual effect of mechanical women's watches does not exceed 45 seconds.