However, many friends have a sense of awareness, but there is still a lack of knowledge of watches, leading to the selection process encountered the dilemma. Today, some basic knowledge of watches, hoping to have some help to beginners.
1
Watch type
Stand in front of the counter, shopping guide asked what type of watch you want, can not you say it is not very embarrassing? So, let's first understand the type of watch. Common watches have mechanical watches, quartz watches, photodynamic energy table, radio wave table.
Mechanical watch
Mechanical watches are generally divided into two types: manual winding and automatic winding. Power is from the movement within the tight winding, driven by the clockwork gear and then promote the hands.
Manual mechanical watch is to rely on manual winding power spring, the thickness of the movement than the general self-winding thin, lighter weight. If you want to keep the watch running, you need to be careful about tightening the wad at any time, but tightening the wig will cause the watch to be damaged.
Automatic mechanical watch is a mechanical manual watch an improvement, the only difference is that it is set in a table around the clockwork can be rotated pendulum Tuo, the pendulum Tuo around the power swing to generate power to drive the clockwork.
Ordinary automatic mechanical watches still retain the manual winding function, only some cheaper automatic mechanical movement, will omit this feature. Because the wrist activity will watch continuous winding, automatic mechanical watches have the function of preventing winding too tight, in order to avoid winding damage.
Automatic mechanical watch is divided into fully automatic and semi-automatic. In the table, the pendulum gyroscope has the function of a winding full automatic mechanical watch in any of the axial directions (including clockwise and anticlockwise rotation); the other is that when one pendulum rotates, only one direction is valid and the other direction is Idling called semi-automatic mechanical watch.
Quartz watches
Quartz watch is the use of quartz crystal by electric drive to produce regular vibration principle, it is thinner than the traditional mechanical watch, precision, while avoiding the need to use the mechanical winding winding on the red tape, and has been popularized.
Quartz watch travel time second hand is a jump, walking time is very accurate; easy to use, no need to wear clockwork, a battery is generally available 2-3 years; some quartz watches with lithium batteries, longer life expectancy; price relative to mechanical watches Cheaper.
Light energy table
Light energy table can absorb any visible light source and converted into kinetic energy to drive the operation of the watch. Due to the use of batteries that do not have to be discarded, it can save a limited amount of earth resources and reduce pollution, making it a truly eco-friendly product. Fully charged after the dark run 40 to 180 days, travel time is accurate, rechargeable battery life of up to 10 years.
Radio wave table
The watch is a kind of wristwatch that can automatically check the time after it receives the radio wave of standard time information. The fuselage is composed of atomic clock and radio receiving system. The time is issued by the national time center and received by the radio receiving system. The time is displayed by the CPU after processing. The error of the radio wave meter for 300,000 years will not exceed one second.
Smart watch
Smart watch is built watch intelligent system, equipped with a smart phone system connected to the network and achieve multi-function, to synchronize the phone in the phone, SMS, mail, photos, music and so on.
2
Waterproof
Waterproof watch performance is one of the important parameters of the election table.
Waterproof watch performance is divided into ordinary waterproof (waterproof life) and professional waterproof (diving). All waterproof watches are marked with "WATER RESISTANT" or "WATER PROOF" on the bottom cover.
Generally waterproof in 100 meters below the life of the water table can not be used for deep-water swimming and diving.
A dive watch is a watch that can sneak into water at least 200 meters deep and has an adjusting device to control the time. Professional diving watch in addition to meet their own diving depths, but also generally have anti-corrosion flexible strap, screw-in non-slip crown, row helium valve, luminous display, rotating bezel and other commonly used functions.
General waterproof watch the standard is divided into: 30 meters, 50 meters, 100 meters, 300 meters, 500 meters. Waterproof depth does not refer to the depth of the water, but the pressure, so 1ATM ≈ 1BAR ≈ 10 meters water depth.
3
Case material
Different case material in the texture, corrosion resistance, abrasion resistance and price and so there is a big difference, also have to understand before buying a watch.
Stainless steel
Stainless steel is currently one of the most commonly used materials for the manufacture of watches, characterized by never fading, no distortion, no irritation to the skin, and environmental protection. Steel material generally marked as "STAINLESS STEEL."
Common 316L steel and 904L steel. 316L steel is stainless steel, corrosion resistance is very strong, the texture is very good. 904L steel is super austenitic stainless steel, more corrosion-resistant wear-resistant, currently only Rolex in use.
Precious metal
Common case material is also a variety of precious metals, such as gold, platinum, platinum, rose gold and so on. Have written in detail before , you can look back: gold watch people, really understand the gold watch it?
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