EF series and G-SHOCK series are not in the same class at all. .
On the one hand, EF series is second only to the lowest-end Volkswagen series, with poor workmanship and materials. With luck, it may take three to five years. No problem. Bad luck will cause problems in half a year. General EF series is most often sent to Casio for after-sales maintenance. Anyone who plays Casio all the year round knows this. .
EF series are embroidered pillows. In terms of appearance, EF series is good-looking, but everything is a problem except good-looking. .
And now EF series a goods are still overwhelming. It is true that the level of Fang is a little high. . It's hard to separate. Therefore, considering the above problems, it is not recommended to buy EF series.
G-SHOCK series is the most important series of Casio, so Casio attaches great importance to this series. G-SHOCK is characterized by its durability. .
If you are at this price, the pointer can consider GW-3000 or GW-4000, both of which are equipped with watches, and there are as many electric waves as optical kinetic energy.
Digital display is hard to say, because the G-SHOCK at this price has more than N digital display models to choose from. There can be a main push here. Radio clay figurine, electric Taiwan Province people, radio trapeze, master clay figurine. By the way, you can also get the price of the big 56 evolution series. .
Among the G-SHOCK series, the lowest is 5600 E (more than 300 yuan), and the highest is Casio's flagship MRG series (50,000-80,000 yuan). Because they all belong to G-SHOCK series, they are consistent in firmness. Therefore, in the G-SHOCK series, the difference in price only represents the difference in function and configuration, and the firmness is equal.
So I mean, since students are simple, there is nothing wrong with it. I suggest you consider the lowest price of 5600E in G-SHOCK. Although it is the lowest price, for those who have played G-SHOCK for many years, no matter how expensive it is, they will definitely buy a 5600E because it is the most classic. In recent years, Jay Chou also brought this kind of watch in the movie "Initial D", so it has been popular for a long time. 5600E has no luxurious function configuration, but returns to its original state. And the simpler the structure, the lower the possibility of failure. . It doesn't matter if you don't have radio waves to correct the time. Most people don't need that precise time, and G-SHOCK is very accurate when it starts. According to the official standard, the monthly error is plus or minus15s. This level of error is beyond the reach of hundreds of thousands of mechanical watches. Photokinetic energy is not necessary either. 5600E, I remember it should be five years. It's very conscience to spend more than ten yuan to change a battery every five years.
With this watch, I dare not say that you can wear it for 7~8 years. After 7~8 years, the shell is only aging, but the movement is absolutely fine. The purpose of G-SHOCK series is to make the strongest watch. G-SHOCK series has several unified standards. Resistance to 10 meter drop impact, earthquake resistance, current interference resistance, and 200 meters waterproof. Especially for students, you can wear this watch 24 hours a day, no matter what strenuous exercise you take with you. .
By the way, most American soldiers wear G-SHOCK because of its durability and low price. Without looking at advertisements, saying that a brand is a military watch of a certain country's army is all advertising words. If you are really interested, you can find many real videos of American troops on the battlefield in the Middle East on the Internet. See if the soldiers are wearing G-SHOCK on the real battlefield. I can't say they are all wearing G-SHOCK, but at least most of them are. It is because of its advantages of durability and low price.