Casio mainly makes electronic watches, while customer orientation tends to be young and energetic, which is more suitable for some students or friends who like young expressions. If you want to buy an electronic watch, you can choose Casio directly.
Then let's talk about Seiko and Citizen. These two brands have a broader positioning and can cover all ages. After all, they are all big watch brands with a history of 100 years, and their product quality and technology are top in the world. Speaking of the development of products and technology, Seiko and Citizen are still somewhat similar in recent years. But when it comes to using light as energy to obtain electricity, we can clearly distinguish the two brands. Because Citizen is the originator of light kinetic energy research and development technology, and has applied for the patent of the name "ecological drive". Comparatively speaking, Seiko has done worse in this respect. It has been 9 102 years, and solar energy is still used as the light source. If you were knowledgeable, you wouldn't buy Seiko's solar watches.
Photokinetic energy is the core technology of Citizen. This technology mainly provides power for the watch through a light source, which can be driven only by a weak light source, without frequent battery replacement. And when the watch is not in the dark state for a long time, the second hand will stop running and enter the power-saving mode. Therefore, it can run continuously for 6 months to 10 years even if it is exposed to dark environment for a long time. After exposure, the time display can automatically catch up with the current normal time. Moreover, at present, the time accuracy of the kinetic energy of light can reach an annual error of 5 seconds, which is about equal to zero compared with the accuracy of ordinary mechanical watches and quartz watches. Optical kinetic energy is not only convenient to use, but also fully functional, from simple three-pin display to perpetual calendar. Now, radio watches have been developed to meet the needs of different people. Low energy consumption, don't worry too much, very suitable for lazy people.
Finally, after all, they are all foreign brands, and the purchase channels and after-sales problems should be taken into account. In fact, in this respect alone, Citizen will win completely. After all, Citizen has been in China for 6 1 year, and its sales outlets and after-sales service are more perfect. Moreover, as far as the warranty period is concerned, Casio is currently 1 year, Seiko is 2 years, Citizen is 3 years, and even the optical kinetic energy has been extended by 3+2. So in the end, if it is used in China, I still recommend Citizen.