EF water depth, online shopping is calm. As long as you like it. What is the suffix of orbbsp? I don't understand it at all. Did JS make the model himself? Laugh. Briefly talk about the naming rules of Casio models. Take EF-550D- 1AV as an example. EF stands for EDIFICE series, which is the style with the most fakes on Taobao. 550D is the dialing type, and 1AV is the color code.

Excerpts from Casio's official statement are as follows:

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Explanation and related statement of the authenticity identification method for EF-550D- 1AV model watches.

20 1 1 year 1 1 month/day.

Recently, our company found that some lawless elements used consumers' trust in Taobao Mall to sell counterfeit watches marked with our registered trademarks on the Internet, which seriously violated our intellectual property rights and business reputation. The specific model is EF-550D- 1AV. In order to protect the legitimate rights and interests of consumers, our company makes the following explanation on the identification method of this model product:

Because this model has the function of 1/20 seconds, consumers can press the top button on the right side of the watch and observe the movement of the hands in the stopwatch dial below the dial to make a judgment. Please refer to the video in the following link for details. Among them, the left side is genuine, the pointer in the stopwatch disk swings left and right, and the right side is counterfeit, and the pointer walks slowly clockwise. Without this function, it can be identified as a counterfeit product. Please pay attention to the identification of authenticity, improve vigilance and judgment ability, and do not give criminals an opportunity.

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But after all, this is the identification method a few years ago. After so long, fakes may have improved.

If you have to buy EF, buy the one with radio waves. It's not that fakes can't be copied, but that the cost of copying is too high.