Watch classification

The watch has different functions, and there are many types. There are different classifications from different angles.

一. Classification of energy based on the original movement system

1. Mechanical watch

Taking the clockwork as the energy source and the time the wheel traveler system as the timing standard.

X X Jewels is marked above the 6th point of the dial.

2. Electronic watch

Taking the battery as the energy, according to the development process of the electronic meter, it is usually divided into four generations.

(1) The first generation of swimmers. Born in 1957, the world’s first wheel electronic watch, Hamilton Ventura.

(2) The second -generation sound fork -type electronic watch

The first sound fork watch in the world in 1966 was Bulova Accutron.

(3) Third -generation pointer -type quartz electronic meter. Taking the quartz oscillating system as the timing standard, the common frequency of quartz electronic watches is 32768Hz, and the time is very accurate. In 1969, the world’s first pointer -type quartz watch was Seiko -ouartz -Astron)

The characteristic of quartz electronic meters is the second hand jump. At the top of the dial at 6 points

(4) The fourth -generation display quartz electronic watch (display number or display pointer), hybrid quartz electronic watch, both pointer and number display, known as a hybrid or dual display

二, the mechanical watch is classified according to the size of the machine

1. Men’s Watch

The diameter of the machine is above 20 mm (the diameter of the case is 38 ~ 44 mm) and there is a medium -sized watch. The shell is slightly smaller, between the men’s watches and women’s watches (the diameter of the case is 30 ~ 35 mm). https://watcheshome.com/

2. Women’s Watch

The diameter of the machine is below 20 mm (the diameter of the case is 25 mm).

3. Little Girl Watch

The machine is smaller, with a diameter of less than 16 mm (the diameter of the case is about 20 mm)

三, Classification according to the structure of the shot

1. Two needles

There are only time and tunnels, without seconds needles, mostly used by thin watches and women’s watches.

2. Little San Shin

The second hand is short, mostly between the center of the dial and the 6 -point position. Such watches are currently visible, but not many of them are retro, and they have been common in history.

3. Three stitches

The second hand is long, and the time, the minute, and the second hand are installed in the center of the dial. Most watches currently use this design.

四, mechanical watches are classified by oscillation frequency

1. Slow

The frequency is less than 18,000 times/hour. It is rare now, there are still old and old tables

2. Quickly swing table

The frequency is 21600 times/hour

3. High frequency table

The frequency is 28800 times/hour. The current Swiss watch machine is mostly 28800 times/h. Features of high -frequency tables: Because the higher the frequency, the stronger the anti -interference ability, the higher the time accuracy. Note: The concept of mechanical surface frequency is different from the concept of physical frequency. The frequency of the mechanical watch is the number of single plans per hour of the swimming hose vibration system; the frequency of physical science is the number of round trips within the unit time, and the unit is/second.

Note: “Rolex” and “Omega” used the frequency of 19,800 times/h; “

五, Classification by the escapement mechanism

1. fine horse watch

Cava of the escapement fork is made of artificial gemstones. This structural accuracy is high, long -lived, and relatively high cost. Most of the medium and high -end robot watches use this structure, and some high -end alarm clocks also use a fine horse structure.

2. Rough horse watch

The two cava of the escapement fork is made of steel wire. The structure is similar to alarm clock. This structure is low and the life span is short. It is mostly used for cheap tables. Such tables were more common before the 1970s, and it is difficult to see. For example, the “Zijin Mountain” brand watch that was produced in the early days of Nanjing Watch Factory was a rough horses structure

Note: The capture fork is generally called “horse” in the repair industry.

六, Classification of additional devices according to the heart of the machine

1. Calendar table

In addition to time, minute, second hand, it can also show the date and month of the date (but the moon and the small moon need to be manually adjusted).

According to the display method of the calendar, it is divided into: pointer calendar; window calendar (currently popular dual -window calendar, but this structure is more complicated,

Calendar table segment is:

(1) Single calendar table only shows the date.

(2) The dual calendar table shows the date and week at the same time.

(3) The dates, weeks, and month of the full -day moon calendar are displayed at the same time.

(4) The moon phase watch shows the lack of the moon (note: the moon phase is distinguished from the north and the south).

(5) The perpetual calendar table is automatically displayed in flat year, leap year, big moon, and small month. The structure is very complicated and the price

Very high.

2. Automatic table

Add a set of automatic upper devices to the basic machine. People wear this watch, as long as they have a certain amount of activity, they can continue to replenish energy until they fill the clockwork to replace the clockwork of daily handicrafts. The English logo is Automatic.

Note: The automatic mechanism is the only additional device that increases the energy of the machine, and all the other additional devices consume energy. WatchesHome product

Reminder: The automatic watch is worn on the hand for at least 8 to 12 hours a day. Generally, the watch can be transported continuously for 28 ~ 36 hours. Those who are old and weak and the amount of activity are small. It is not suitable to wear mechanical automatic watches.

七, Classification of watch performance according to watches

1. Waterproof watch

English logo is Water Resistant or Water Proof

The case of the watch, the meter, the glass, etc., take sealing measures to improve the stability of the watch for a long time, and extend the service life of the watch. It is divided into 20 meters, 30 meters, 50 meters, etc. according to the degree of waterproof.

Under normal circumstances, 4 parts in the waterproof sealing structure of the case may enter the water

(1) The front door case and table glass;

(2) The back door case and the back cover;

(3) Drims D case and waterproof pipe; 2 heads and waterproof pipes.

There are some watches that have a thread locking structure, and the waterproof effect will be more ideal

Note: Qualified waterproof performance of the new table does not guarantee permanent qualification. The “waterproof life” of the new table is

1 to 2 years.

Although it is a waterproof meter, it is long and long, and the waterproof performance will continue to decline. The reason is: D is used for a long time, and the inner rubber ring in the head will wear and aging;

2 Due to temperature changes for a long time, thermal expansion and contraction, gaps between the table glass and the case; 3 The waterproof rubber rings of the table will be eroded for a long time, which will be oxidized, aging, and damaged.

The waterproof performance of the test watch is performed under the conditions of the laboratory. The temperature of the laboratory is 20 ~ 25c, and the water and watches are relatively static. Note: Watches cannot be used in an environment of 45C or more, let alone take a hot bath with watches, especially not steaming sauna baths. Because metal cases, table glass and sealing rings are three different materials. The thermal expansion coefficients are very different, and it is easy to occur in water and vapor. It is often in an environment with high temperature, and sealing such as waterproof rings will also accelerate aging, and the sealing performance of the watch is increasingly decreasing. Tip: Watch with high value should be performed once before the rainy season of the year, replace the aging waterproof parts, ensure the sealing performance, extend the service life of the watch, and maintain the stability of long -term walking. Note: The waterproof 100 meters is classified as a “diving watch”,

chapter.

2. Earthquake watch

The English logo is Shock Resistant.

Robot watches or quartz watches fall from 1 meter height to the hardwood floor, or equivalent tests. The watch is non -stop, not bad, and parts will not fall off.

Note: After being shocked, the quartz watch easily causes frequency drift, affects the precision of the time, and even causes watchmaking, seconds and seconds.

3. Anti -magnetic watch

The English logo is Anti-Magnetic

Watches are all magnetic fields in 4800 amp/meter (60 Auster). The watch kept walking: After the watch was evacuated, the error was qualified within the specified range. Most quartz watches do not have “anti -magnetic”, but still tolerate the magnetic field strength of 1600 amp/mm (20 Ost).

八, Classified by the use of use

1. pocket watch

Also known as hanging watches and bags, you cannot wear it on the wrist. The shape is larger than the watch. History is much longer than watches, and now it is rare in products.

2. Watch

Also known as the watch, the timer worn on the wrist originated in the “World War I” and became popular in the “World War II”.

3. Spike

It is like a pocket watch, with time -time and consistent seconds for use for measurement periods.

4. Target watches

Attach time, it can make a noise like an alarm clock

5. Blind watch

(1) The mechanical table glass can be opened, the dial and acupuncture are particularly firm, and the pointer and scale are touched with your fingers.

(2) The special button of the quartz watch can make a sound or use the vibration report time.

6. Multifunctional watch

(1) Mechanical multi -function watch

The first watch knowledge

Figure 1-1-10 Mechanical Blind Watch

(Touch the pointer and scale with your fingers, perceive time)

D Energy Show: There is a special pointer for energy storage energy to display energy storage;

2 chronograph: The measurement period, 1/10 seconds, 1/100 seconds (high -level pursuing function); 3 Divor the spring question table: Start the special button to report the time at any time. Three questions: reporting time, engraving, reporting points; 4 self -scholarship: automatically report when you are on the point, or there are music performances.

The tourbillon watch is not an additional device and should be classified as a complex structure (technical difficulty, small output, price

high).

Note: The four major complex technologies of mechanical watches include mechanical codes, spring interrogations, perpetual calendar watches and tubal wheel watches.

(2) Electronic multi -function watches music and language reports; multiple time, world time, calculator, radio, countdown, pulse measurement, blood pressure measurement, compass, thermometer, air pressure meter, highmeter, paging machine, etc.

Note: Due to the characteristics of microelectronics technology, multifunctionalization is simpler than the mechanical structure, easy to make, and moderate price.

九, classify the case material

1. All steel watches

The case and the back cover are made of stainless steel. English logo is all stainless Steel

2. Half steel watch

The case is made of copper, zinc and aluminum alloy, engineering plastic, etc., and the rear cover is made of stainless steel. The English logo is STEEL BACK

3. Gold watch

The case is manufactured with different content of gold (24K for pure gold, and the gold content is 100%). The gold content is generally indicated by steel printing at the opening of the case or on the back cover, or the logo: the tree represents 10K, the bird represents 14K, and the woman’s head (dog head) represents 18K. 

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