Can you replace the rechargeable battery in a Seiko solar watch?

By Matthew Joseph Nandirio •  Updated: 08/08/21 •  6 min read

Reliability is the best output from a Seiko solar watch that you desire. You can use this solar watch effortlessly for at least 8-10 years without battery replacement. This is because the battery used in the watch is constantly changing by absorbing light.

Not only that, but also if you keep the battery in total darkness, it can run well then by using the power reserve of the battery.

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However, although this Seiko solar watch is much more reliable and long-lasting, you sometimes need to replace its battery. So, it can run well and deliver you the best working performance to know the accurate time.

Therefore, in this article, I have to tell you whether you can replace the battery in a Seiko solar watch, how to do it, and some other related information.

So, let’s go through the article without wasting much time!

Can a Seiko solar watch battery be replaced?

Usually, there is no need to replace a Seiko solar watch battery at a regular interval. But, yes, you can replace it depending on your watch ticking performance.

If you don’t take proper care and maintenance of your watch and leave it in a dark condition for more than 6 months, it may not work well. So then, you may need to replace your watch battery or capacitor or kinetic cells to ensure its working condition.

Moreover, prolonged watch use reduces its performance, so you may still need to replace its battery.

Therefore, according to Seiko, one of the most recommended reasons to replace a Seiko solar watch battery after 10 years is to ensure its best performance.

Besides, they also recommend that to avert any watch damage such as battery leakage, you should replace your battery as soon as it completely runs out.

What type of battery is in a Seiko solar watch?

The manufacturer Seiko uses a secondary battery instead of a normal battery to build a Seiko solar watch.

This is because this rechargeable battery charges the solar watch (time to charge Garmin solar watch ) by absorbing light, which converts into electrical energy.

Not only that, but also this secondary battery stores the converted electrical energy as a power reserve for the watch movement. And also, due to having the auto energy generating system, it can repeat charging and discharging. Thus, you can use your Seiko solar watch for a longer period of time.

Besides, Seiko claims that they provide a power-saving function into the rechargeable battery of their solar watch. Therefore, if you left the watch uncharged for a longer time, you don’t need to worry.

Your Seiko solar timepiece will automatically stop operating. So, it can prevent unnecessary power consumption. Yet, whenever you expose it to light, it will immediately show you the current time.

How much does it cost to replace your Seiko watch battery?

To replace a Seiko watch battery usually costs about $25. Besides, this battery replacement cost entirely depends on the brand name, manufacturer, and watch type.

However, if you can replace the battery yourself, there will be no extra cost for the battery replacement task except the cost of the battery itself. Yet, if you want to do it with an expert, it will cost you a little bit.

Here, the cost can vary for a watchmaker, and it will depend on the time, the tools used for the battery replacement, and the liability risk of the job.

All right, as I mentioned before that the battery itself will cost you about $25, yet when you do it with an expert, it will probably cost you around $30-$40.

Well, in the case if you have to go to replace your Seiko watch battery, I will recommend you to take your watch to a professional. This is because they know the ins and out of your watch and know exactly how they will replace the battery.

How long does your Seiko solar watch battery last?

According to the brand Seiko, a Seiko solar watch battery usually lasts well for a minimum of 10 years.

One of the main reasons for lasting this battery life for a long time is a maintenance-free solar watch. Therefore, during this period, you don’t have to replace its rechargeable battery. Neither, you need any battery modification.

Moreover, the Seiko solar-powered watch features improved and reliable latest solar technology. Thus, this solar watch can be charged (charge your dead Eco-Drive watch) with any light source; it can be natural light or artificial light.

However, with a full charge, your watch can run well for about 6 months, no matter if it’s in total darkness. All you have to do is put the watch under the lights to get it back in working condition.

Therefore, you can have this incredible solar watch that can start ticking again even after 10 years of being stored in a dark drawer.

How can I change the Seiko solar watch battery?

All right, to change the battery of your Seiko solar watch, you can take the watch to an expert or can change it yourself.

Although, it would be better if you take it to a professional watchmaker. Yet, if you want to change yourself, you have to follow several steps.

  • First, you need to remove your Seiko solar watch back cover using a special tool or a watch clamp so you can unscrew it.
  • After that, find the existing battery and remove it using tweezers. It will help you to lift the battery more conveniently.
  • Then you need to insert the new rechargeable battery into your watch. Here, you can use tweezers to insert the battery. And then, you have to press down the newly inserted battery to ensure that it is placed into its position securely.
  • Finally, check if you have properly installed the new battery and then put your watch back cover back in place again.

Well, you can follow the video below to understand the battery replacement process of your Seiko solar watch more easily.

Final thought

The Seiko brand manufactured their solar-powered watches for quite a long time. They built these watches providing improved new solar technology and innovative developments.

However, despite being a good watch, it needs a battery replacement to ensure its operating performance after a decade of use.

So, in this article, I have given you the details about your watch battery replacement. Hopefully, now after reading the article, your doubts about this topic: Can you replace the battery in a Seiko solar watch or not? are gone.

So, get your Seiko solar watch without worrying about battery replacement and enjoy its ticking!

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Matthew Joseph Nandirio

Matthew Joseph Nandirio is the Founder of walkingsolar. After graduating from the University of Houston in 2002, matt started working as an electrical and electronic engineer for several multi-national solar energy companies. He has a wide range of experiences including solar system requirement analysis, planning, maintaining, debugging and even solar device development through research. He now shares his 20 years of expertise through his articles on the walkingsolar website. Further, he is also the author of two books on Solar Technology, “Solar Power for Villages” and “DIY Solar System for Dummies”.