A WATCH THAT
CHARGES ITSELF.
It runs on light. So it never needs charging, never needs winding, and never needs battery changing. You wear it. It handles the rest.
NEVER CHANGE
A BATTERY AGAIN
Powered by the light around you.
Sun, daylight, even your desk lamp. If there's light, it's charging.
The last battery it'll ever need.
A rechargeable cell, built to outlast the watch itself. No swaps, no jeweller.
One year on a single charge.
A few hours of light bank months of quiet, uninterrupted motion.
THE TECH BENEATH THE DIAL
It looks like an ordinary watch. It isn't. Light passes straight through the dial to a solar cell hidden beneath it. The cell turns that light into power, stores it in a rechargeable cell, and feeds the movement. All invisible. All working while you wear it.
The dial
Looks opaque, but isn't. Engineered to pass light straight through to the cell below, with nothing on the face to give it away.
The solar cell
Sits just beneath the dial, turning any light into power. Sun, sky, or the lamp on your desk.
The Movement
A Japanese solar movement, holding every layer in precise alignment and keeping time to within twenty seconds a month.
LIFESPAN
Most watches are on a countdown. A quartz watch is defined by the battery it'll eventually need. A mechanical one by its next service. A Solios owes nothing to either. Its rechargeable cell holds over 80% of its power for 20 to 30 years, topped up by light every day you wear it. Nothing to run down. Nothing to replace.
IN PRACTICE
1 weekend
Of cloudy weather is enough to reach a full charge. After that, the watch maintains itself.
2 HOURS OF SUN
4 months
One lunch outside banks a whole season of power.
LEFT IN THE DARK
Up to 1 year
A drawer, a safe, a full winter without it. Fully charged, it just keeps time until you're back.
MORE LIGHT THAN YOU THINK
Solar doesn't mean sunshine. The cell is tuned for the light you actually live in: a bright office, an overcast walk, the lamp beside your bed. It charges in your ordinary day, which is exactly why you'll never think about charging it.
Sunlight
Daylight
Office lighting
Cloudy skies
MORE PRECISE THAN PEOPLE THINK
We're taught that mechanical means precise. Easy to believe, mechanical watches carry two centuries of prestige. But prestige and accuracy aren't the same thing. Every Solios keeps time to within twenty seconds a month. A mechanical watch that even comes close needs stripping down, oiling and re-regulating every few years. A Solios needs none of it. The accuracy is built in. The upkeep isn't.
20x
More accurate than a typical mechanical watch.
7x
More accurate than a certified chronometer (COSC)
2 billion
Watch batteries thrown every year.
A reminder that small personal choices can have a lasting collective impact.
30 years
And still keeping time.
It holds over 80% of its power for two to three decades.
15 batteries
You’ll never throw away.
Roughly what a quality battery watch burns through in a lifetime. A Solios: none.
FREQUENTLY ASKED QUESTIONS
Does it really charge indoors, or only in the sun?
In the sun, by a window, under your office lights, on a grey winter afternoon, it's charging in all of them. The cell is tuned for the light you actually live in, not just bright sunshine. That's the whole point: you power it just by going about your day.
So I never change the battery?
Not in a lifetime of wear. The rechargeable cell inside is topped up by light and built to hold its charge for 20 to 30 years, longer than most people keep a watch. No dead battery, no jeweller visit, no watch sitting in a drawer waiting to be fixed. For as long as it's on your wrist, it just keeps going.
What if I don't wear it for a while?
Fully charged, it keeps running in the dark for up to a year. And when it finally runs low, it tells you: the second hand starts ticking in two-second jumps instead of one, a quiet nudge to give it some light. A few hours of sun and it's back. Even running low is effortless.
Is solar quartz really as accurate as a mechanical watch?
More accurate, actually. A Solios keeps time to within about twenty seconds a month. A fine mechanical watch drifts several seconds a day and needs stripping down and re-oiling every few years. Solar gives you better time and zero maintenance. Prestige is one thing. Accuracy is another.
Can I get it wet?
Depends how wet. The Sunseeker is rated 10 ATM and takes swimming in stride. The Curve and Curve Mini are rated 5 ATM, made for daily life, rain, a splash, washing your hands, just not the pool.
