Solar Powered watches - Seiko and Casio | Watch Guru

Solar Powered watches - Seiko and Casio | Watch Guru

Watch the full video review

Solar Powered Watches

Solar power is an often overlooked power source for watches. Battery powered watches only last for a few years before they die and require maintenance. Manual wind watches require winding regularly, usually every other day. Automatic watches need to be worn to keep their power reserve.

Solar powered watches, though? All they need is a light source and they’ll keep going for decades, with no input from their owner.

Clearly, solar powered watches have a unique benefit over all other types of power source: low maintenance. In this video, we’re going to put two heavy weights of the solar power industry up against each other: Seiko and Casio.

Usually you will spend more on a solar powered watch than a standard battery powered quartz watch, obviously due to the technology behind them. But they’re not necessarily going to break the bank. Both of these models from the Japanese heavyweights are sensational solar options, and both cost exactly the same - £349.

Seiko - the Prospex Core (PADI)

This Seiko - the Prospex Core (PADI) SSC785P1 - is one of my favourite Solar powered watches, made famous by the blue and red Pepsi bezel insert. It’s powered by the Seiko V175 movement, which will give you 6 months of battery life on a single solar charge of 5 hours of sunlight. It also has a low battery life indicator function, where the running seconds hand will tick at 2 second increments instead of the normal 1.

Additionally, this watch is built to be a legit heavy-duty dive watch, with a 200m water resistance, their extremely bright lumibrite lume, rugged silicone strap, and overall top notch build quality.

*Note: The item from this blog may be out of stock. Please click here to find a suitable alternative.

Casio - G-Steel GST-B100D-1AER

The Casio is much of a similar ilk. It’s part of the G-Shock collection, so naturally it’s hard-wearing. But not only that, it’s a G-Steel model, so funnily enough it’s made of steel rather than plastic; and it has bluetooth connectivity and radio controlled setting. This is the G-Steel GST-B100D-1AER, powered by their 5513 module.

It has a 5 month life from a full charge, but that’s expected considering the tech it’s packing. And it is a lot more sophisticated than the Seiko equivalent. You can actually find out the battery level before it’s too late, you have some additional bluetooth functions alongside the G-SHOCK Connected app, it has a time and alarm function, and a tiny LED light too.

*Note: The item from this blog may be out of stock. Please click here to find a suitable alternative.

Final Verdict

The great thing about Solar powered watches is that they can be charged from any light source - including the lights in your house. In a world where everyone is thinking about being as green as possible, they are also incredibly eco-friendly.

Now, I appreciate this is a Watch Guru VS article - so which one would I pick between these two? It’s a real tricky one, as the part of me who appreciates features and specs says the Casio is the better option. However, the Seiko feels more of a grown-up, proper dive watch - less gadgets, more purpose.

So in reality - it’s down to what you want - as you can’t go wrong with either of these superb Solar powered watch manufacturers.

blog author

Joshua Clare-Flagg

Watch It All About

As an avid consumer of affordable watches with amazing quality, our Watch Guru Joshua Clare-Flagg from the popular watch blog Watch It All About is giving an insight into his thoughts on the watch world.

WatchShop is a trading name of The Watch Shop Holdings Limited. WatchShop™ is a registered trademark © 2023. All rights reserved.

By clicking “Accept All', you agree to the storing of cookies on your device to enhance site navigation, analyse site usage, and to help with our marketing and online advertising by displaying personalised ads to ensure you have a great shopping experience. Preferences can be adjusted in Cookie Settings. View our Privacy Policy