It must be Citizen. Eco-Drive is Citizen's patent. Seiko's is at most solar energy, it's incomparable, it's not at the same level at all. Citizen's Eco-Drive watch is developed based on Citizen's quartz watch movement. Corresponding improvements were made to the dial, integrated circuit and battery, and a solar chip was added. Compared with quartz watches, Citizen Eco-Drive watches have all the functions of quartz watches and the unique functions of Eco-Drive watches. There is no need to replace the battery frequently. You can continue walking while wearing it under sunlight or house light, which is very convenient.
How to choose between Citizen and Seiko Eco-Drive dive watches?
Citizen is definitely better. First, Citizen, Seiko and Casio are the three big brands in Japan. Each brand has its own technologyie and its own positioning. However, when it comes to using light as an energy driver to obtain electrical energy, it is still a good choice. one of the three. Citizen is the originator of photodynamic energy research and development technology and has applied for a patent for the name "Eco-drive". Citizen is far ahead in light energy research. Its products are mainly equipped with light kinetic energy technology. Based on light kinetic energy technology, Citizen's products are excellent in convenience, durability, fashion, environmental protection and have a good reputation. on the market. Also amazing. Compared to Citizen, Seiko is worse in this regard. It still uses solar energy as a light source. If you understand, many people will not choose Seiko's solar powered watches. As for Casio, most of its watchess are quartz electronic watches, and its R&D and utilization capabilities in light energy technology are only average.
Photodynamic energy is Citizen's core technology. This technology mainly powers the watch via light sources. It does not require frequent battery replacement and can be powered by a weak light source. And when the watch is not used for a long time and is in the dark, the watch will enter power saving mode. So even if it is exposed to a dark environment for a long time, it can continue to work for 6 months. 10 years. When using it, take it anywhere there is light for lounging, and the time display will automatically catch up to the current normal time. In addition, the current temporal accuracy of photodynamic energy can reach an annual error of ±5 seconds. Compared withto the accuracy of ordinary mechanical watches and quartz watches, this error can be ignored. Eco-Drive is not only convenient and practical, but also has many functions, from simple weekly calendar display to more complex perpetual calendar, chronograph, world time, alarm, etc., there are many styles to choose from. Not only that, Citizen also added its own two black technologies, electric wave and satellite time synchronization, to some luminous kinetic energy watches, making the watches more precise and complex in function.
In terms of after-sales service, Citizen has also achieved the best. Citizen entered China relatively early, more than 60 years ago, and its sales outlets and after-sales services are relatively complete. Judging from the warranty period, Casio currently has a one-year warranty, Seiko has a one-year warranty.2 year warranty and Citizen Eco-Drive has obtained an extended warranty of 3+2 years. Taking these things into account, you should choose Citizen Eco-Drive.
As a die-hard fan, I would like to say that it has to be Citizen! ! ! I don't know if the original poster refers to these two brands. Which watch is it, but if it's Eco-Drive, Citizen must not miss it!
Eco-Drive is Citizen's patented technology with nearly 50 years of research and development history. It is ahead of any other watch brand in this field and others are all called “Solar Drive” with similar names. and only Citizen can use it. The name "photokinetic energy". Photokinetic energy provides kinetic energy to the watch by absorbing visible light, natural light, artificial light, dim light, etc. It charges when worn on the wrist. In addition, the photodynamic battery has a lifespanfrom 10 to 15 years old. When fully charged, it can continue to work in the dark for 6 months, and it can work for 2 years after turning on the power saving mode. Citizen also offers a 3-year movement warranty and a 2-year extended warranty for its light-powered watches.
In terms of recommendations, I personally like their "Star Dive". “Star Diver” is equipped with luminous kinetic energy movement and also integrates GSP satellite time synchronization technology, making it the world's first satellite time synchronization diving watch. The time can be set precisely on land, water and in the air anywhere in the world, without the need to set the time manually as with a mechanical watch. For "star diving", simply press the time setting button before entering the water, which is convenient and quick.
As a diving watch, the material of the watch is very important. “Star Submersible” uses Citizen’s original Shubot titanium case. Thanks to unique titanium processing technology and Duratect surface hardening technology, Shubot titanium is 5 times harder than stainless steel, while being 40% lighter and wear-resistant. corrosion resistant, and the titanium metal itself is also skin-friendly and hypoallergenic, which makes the "Star Diver" not afraid of seawater corrosion and more comfortable and lighter to wear. to carry.
The “Star Diver” is waterproof up to 200 meters. Its unidirectional locking bezel and screw-down crown can effectively prevent time errors caused by incorrect operation underwater, and the "Star Diver" has a diving mode. , after entering the water, all operations will be automatically lockedlated to prevent accidental contact underwater, making the diving experience safer and more comfortable. The hands and time scales of the “Star Diver” also feature a luminous coating, making it easy to time and observe the time underwater.
The most memorable thing is that the inner ring of the “Star Diving” watch is engraved with the world's top 8 diving resorts selected from TripAdvisor's top 100 diving sites around the world. Each of them is worth checking out. and live. , as a diving enthusiast, owning such a watch really gives me a sense of exclusivity and identity. Plus, it's more cost-effective and easier to use, making it worth the money.