The movement is the soul of mechanical watches. In the mechanical watch, the quality of the movement has a total impact on the total value of the watch by more than 70% (except for the brand value), which is also the core of the whole watch. As a result, many sellers use the psychology pursued by the watchmakers for high-quality Swiss movements, and other movements lie about Ruixin. There are five common types of Swiss ETA movements on the market: ETA2824, eta2836, eta2892, eta7750 and eta6497, among which the ETA2824 movement is the most widely watched. In the imitation market, there is a Swiss ETA2824-2 calibre, and more of it is a variety of modified deformation, the most common is the seagull movement factory and the Hangzhou movement factory imitation ETA2824. The seagull is also called the ST21 movement, and Hangzhou is named the 6300 movement. Figure 1 shows the ETA2824-2 movement's sanding movement, also commonly referred to as the white machine, using the Gabriel shock absorber (and a triangular shock absorber). The specific circumstances of this movement: movement diameter: 25.6 mm; movement thickness: 4.6 mm; the entire movement with 25 rubies; vibration frequency: 28800 oscillations per hour; kinetic energy storage for 38 hours; is a two-way winding Automatic movement. Figure 2 shows the ETA2824-2 brass movement, also known as the red meat movement. It is more common on the market and uses triangular suspension. This is an unmodified blank movement. The color is the color of the copper alloy. The imitation watch is mainly made up of seagull and Hangzhou imitation Swiss movement. If necessary, the original ETA2824-2 movement can be replaced. Many watch manufacturers have used this machine for nickel-plating and enamel treatment, plus various types of corrugated grinding, and a higher level of hairspring and balance device. The appearance is very dazzling, and it can easily pass the test standard of the Observatory. From the earliest original style to the current ETA2824-2, the appearance is slightly changed, but the famous two-way winding mechanism has not changed, there are two-way, one-way winding efficiency, there is still no good or bad Conclusion, but in terms of the author's experience, the winding effect is very good, as long as the amount of movement is larger, the barrel is close to the full chain state. The most obvious advantage is that the accuracy is very stable and the errors in all positions can be minimized. Figure 3 shows the Seagull ST21 movement, which is what we usually call the Seagull 2824. It usually gives us the impression that it is full of fish scales (at least for now). The old model is a domestic triangular shock absorber (single gap). After the improvement, the new upgrade uses the imported genuine Inga shock absorber. The eta movement also has a similar fish scale, which is called pearl. The fish scales of the seagull and the fish scales of the eta are very similar, but there are also differences, a single visual effect, and the fish scales of the seagull seem to have a feeling of shrinking. Of course, the Seagull 2824 movement is also a very cost-effective movement. This movement has also been transformed into the appearance of other movements by many high-profile manufacturers to pursue the fidelity of the back-to-back. For example, it has changed to the appearance of Audemars Piguet's cal.3120 movement, and some modifications may greatly increase the cost of the movement. Figure 4 shows the Hangzhou 6300 movement, namely the Hangzhou movement factory imitation ETA2824. Workmanship is not as good as Seagull 2824, but from the appearance, this movement and the ETA2824-2 red meat movement are the closest, it is difficult to distinguish without careful look. There are also many bad merchants in the market who spend 200 yuan to put this movement on the ETA's full set of stamps (such as the one on the map below has been stamped, pit), pretending to sell ETA2824-2 or to install a profit for customers. There may be thousands of dollars or more of traps here, so be careful! So, in the face of the uneven 2,824 movement, how do we distinguish? For white matte movements! There are Seagull 2824 and ETA2824. This is well recognizable. At present, most seagulls are full of fish scales, and for white matte movements (because of the Gabriel shock absorbers), we can see the brightness of the shock absorbers. . Looking at the two pictures, first of all, the first picture ETA2824 movement has Geneva pattern, and the second seagull 2824 movement is full of fish scales, which can be seen at a glance. Of course, if you encounter a white frosted movement, both patterns are frosted, we can compare the brightness of the ruby ​​on the shock absorber as indicated by the arrows in the next two figures. Figure 5 ETA2824 is definitely bright red, and the figure The six seagulls 2824 will be purple-black and look darker. For the red meat movement, there are Hangzhou 2824 and ETA2824. Figure 7, the same first point we can see the brightness of the shock absorber ruby, the second point we can distinguish by the gap of the shock absorber. Looking at the arrow below, the Hangzhou 2824 (namely Hangzhou 6300 movement) shock absorber has only one gap, while the ETA2824 has three gaps. The above is a very practical method for identifying several 2824 movements from the appearance of the movement. These kinds of movements are very large in the imitation table. When you are not sure, you can refer to the following figure to compare yourself. What kind of movement is it. Meltblown Nonwoven,Meltblown Fabric,Meltblown Nonwoven Fabric,Melt Blown Non Woven Fabric Sunshine Hygiene and Health Care Technology Jiangyin Co., Ltd , https://www.shhcnonwoven.com
