The Solar Curve

Black Dial - Black Case
Never change a battery
Charges with any light
One watch for every occasion

Case Size

Strap Material

Strap Color:

Free Shipping ・ Free Returns & Exchanges

Introducing the Solar Curve Black Case and Black Dial: our representation of premium craftsmanship, innovation, and sustainability in the realm of timepieces.

Crafted with a sleek curved case and a double-domed sapphire crystal, this watch sets a new standard in solar sophistication.

The 10mm recycled stainless steel case houses a solar-powered movement, offering 6 months of power reserve with just 2 hours of sunlight exposure. Say goodbye to battery replacements and hello to hassle-free accessorizing with easily interchangeable straps.

Join us in our mission. For every product sold, Solios donates 1% to restore the rainforest . Make a statement with the Solar Curve in Black—where style meets purpose.

Product Specs

Movement: Quartz Solar Powered
Power Reserve: 6 months
Rechargeable: With natural and artificial light
Glass: Double Curve Sapphire Crystal
Case: Certified Recycled Stainless steel
Case Thickness: 10mm
Crown position: 4 o'clock
Lugs (and strap) Width: 18mm
Lug to lug: 46.0mm
Water Resistance: 5 ATM
Strap: Easily interchangeable

3-Year Warranty | 30-Day Returns

Our #1 priority is that you love everything about your Solios — which is why we offer free returns and exchanges on unused items for the first 30 days. We can only accept returns & exchanges on unused items, so please gently test them out at home before wearing them for a full day. Learn more about our return policy.

Our watches are guaranteed by a 3-year limited warranty that warrants that our watches will be free from defects in materials and workmanship under normal use. This limited warranty does not cover plating, scratches, or any damage arising from normal wear or accidents. Learn more about our warranty.

We are proud to offer free international shipping. For more info, see our FAQ.

Bulk, Custom & Corporate Orders

Whether you want to show your gratitude to your customers, recognize the dedication of your employees or create a bond with the groomsmen at your wedding, combine your idea with our expertise for a unique experience.

See our Corporate Offer →

Join us on our journey to eliminate single-use batteries from the watchmaking industry.

No battery changes. 

Simply wear it to recharge it!  You get 6 months of charge after only 2 hours of exposure to light.

Lasts 30+ years.

Our solar movement will outlast regular quartz movement, retaining more than 80% of its charging capacity for over 30 years.

Kinder materials.

Made from sustainable materials like recycled stainless steel, PU-free vegan leather, or even ionic metal plating to prevent chemical spills.

Topped with the finest.

Enhanced durability was our primary objective. Then, the idea of a unique optic experience made us develop our double-curved infinity sapphire crystal. An innovation to differentiate a Solios, even from a distance.

Nothing to hide.

As the first certified B Corporation in the watch industry, we strive to make every aspect of our business ethical, durable and impactful - in a positive way.

1% to help protect & restore the rainforest.

How can we help?


Got questions on solar? We're here to help!

How does it charge?

You simply have to wear it. Your Solios will recharge by itself with either natural or artificial light. Only 2 hours of exposure to light will completely recharge your watch.

What happens during winter?

Your Solios has a 6 months power reserve. Enough to sleep your way through winter. In case you need extra power, your watch can charge with artificial light.

How long will it last?

A lifetime. After 30 years, your Solios will still have 80% of its charging capacity. We’ve created a watch that will remain by your side for ever and won’t ask for extra batteries.

Why is it sustainable?

Promoting renewable energy while eliminating the production of extra toxic batteries. On average, a watch battery will last 2 years. Your Solios will eliminate 20+ batterie over its lifecycle and will also reduce overconsumption.