Zentavo — Onyx
Does it need a battery?
No. The movement winds itself from the motion of your wrist. Wearing it is charging it.
Will it fit my wrist?
Almost certainly. The bracelet sizes at home in minutes with the included tool — link by link, until it sits exactly right.
What is in the box?
The watch, your welcome card and the bracelet tool — in a protective box, shipped within 24 hours.
How accurate is an automatic?
A few seconds a day — the character of a mechanical movement, not a fault. Covered by a 1-year warranty.
What does the warranty cover?
12 months of warranty on the movement. If anything fails in that period that was not caused by impact or misuse, you can return it — and repairs under warranty are always free. One email to support@zentavo.shop is all it takes — we handle the rest.
Can I shower or swim with it?
3 ATM means splash-resistant: rain, washing your hands and sweat are no problem. We advise against showering or swimming — warm water and pressure are not for an open-heart case.
Why does it cost €289.99?
You are paying for the mechanics: an automatic NH38A calibre with 24 jewels, sapphire crystal, a PVD-treated 316L case and an integrated bracelet with safety clasp. Comparable specifications cost more at most brands; we sell direct, without middlemen.
Limited stock — only 4 left
A heartbeat you can see. A presence you can't ignore.
The Onyx is built for the man who knows his worth and doesn't need to prove it. Polished black that reflects without revealing. An open-heart skeleton that reveals the beating core of the movement — because real luxury has nothing to hide.
This isn't a watch you wear to be seen. It's a watch that's noticed by the people who see the difference.
Crafted for the few. Worn by the worthy.
Not for everyone. For you.
TAKE YOURS
- The watch
- Luxury Zentavo box
- Welcome card
- Bracelet adjustment tool
Zentavo is a young brand — these are the first impressions.
You’re early. That’s exactly the point.
We can’t show you thousands of reviews yet. We can show what every buyer gets, in writing:
- 1-year movement warranty
- 30 days to decide
- A human who answers — not a bot
“Prachtig automatisch horloge met een luxe uitstraling! Het open-heart design met de blauwe wijzerplaat is een echte eyecatcher. De geïntegreerde stalen band zit erg comfortabel en het mechanische uurwerk loopt prachtig soepel. Absoluut een aanrader!”
“De afwerking is prachtig het voelt luxe aan en je merkt meteen dat er veel aandacht aan de kwaliteit is besteed. Het is een stijlvol horloge dat bij elke gelegenheid past.”
“Beautiful watch! 👌”
“Ik vind het een zeer bijzondere horloge , het is zeker een must have. De kwaliteit spreekt voor zich en het is de moeite waard voor het bedrag. Ik kan niet wachten op de nieuwe collectie van Zentavo Watches.”
‘Verified buyer’ means: linked to a real order via Loox.
Choose options
Questions, answered honestly
GOOD TO KNOW
Does it need a battery?
No. The movement winds itself from the motion of your wrist — wearing it is charging it. Take it off and it keeps running for about 41 hours. Stopped? Wear it for a moment and set the time — nothing is broken.
Will it fit my wrist?
Almost certainly. The bracelet sizes at home in minutes with the included tool — link by link, until it sits exactly right.
What is in the box?
The watch, your welcome card and the bracelet tool — in a protective box, shipped within 24 hours.
How accurate is an automatic?
A few seconds a day — the character of a mechanical movement, not a fault. The NH38A calibre is proven, robust and serviceable by any watchmaker worldwide. Covered by a 1-year warranty.
What does the warranty cover?
12 months of warranty on the movement. If anything fails in that period that was not caused by impact or misuse, you can return it — and repairs under warranty are always free. One email to support@zentavo.shop is all it takes — we handle the rest.
Can I shower or swim with it?
3 ATM means splash-resistant: rain, washing your hands and sweat are no problem. We advise against showering or swimming — warm water and pressure are not for an open-heart case.
Why does it cost €289.99?
You are paying for the mechanics: an automatic NH38A calibre with 24 jewels, sapphire crystal, a PVD-treated 316L case and an integrated bracelet with safety clasp. Comparable specifications cost more at most brands; we sell direct, without middlemen.
Still unsure? Email us at support@zentavo.shop — we reply personally.
A heartbeat you can see. A presence you can't ignore.
The Onyx is built for the man who knows his worth and doesn't need to prove it. Polished black that reflects without revealing. An open-heart skeleton that reveals the beating core of the movement — because real luxury has nothing to hide.
This isn't a watch you wear to be seen. It's a watch that's noticed by the people who see the difference.
Crafted for the few. Worn by the worthy.
Not for everyone. For you.
TAKE YOURS
In the box
Manifest
-
The Open-Heart
NH38A automatic — 24 jewels, sapphire crystal
-
The sizing tool
Bracelet sized at home — link by link
-
Welcome card & warranty
1-year movement warranty
-
The dispatch
Ships within 24 hours
€289,99
Direct from Zentavo — 30-day free returns
Free EU shipping · tracked & insured
You’re early.
That’s exactly the point. A young heart — every beat counts.
“Prachtig automatisch horloge met een luxe uitstraling! Het open-heart design met de blauwe wijzerplaat is een echte eyecatcher. De geïntegreerde stalen band zit erg comfortabel en het mechanische uurwerk loopt prachtig soepel. Absoluut een aanrader!”
“De afwerking is prachtig het voelt luxe aan en je merkt meteen dat er veel aandacht aan de kwaliteit is besteed. Het is een stijlvol horloge dat bij elke gelegenheid past.”
“Beautiful watch! 👌”
“Ik vind het een zeer bijzondere horloge , het is zeker een must have. De kwaliteit spreekt voor zich en het is de moeite waard voor het bedrag. Ik kan niet wachten op de nieuwe collectie van Zentavo Watches.”
Time, being made.
Behind the glass, a weighted rotor winds a coiled spring as your wrist moves. The balance wheel — the part you can watch swinging — splits that energy into six perfectly even beats per second — 21,600 an hour.
No battery. No charging. Just three hundred years of mechanical thinking, working on your wrist.
Zentavo is a Belgian watch brand, sold direct without middlemen — that is what makes this calibre possible at this price.
Questions? A real person answers — on WhatsApp or at support@zentavo.shop.
You’ve seen what’s inside.
Now wear it.
Integrated links, brushed and polished in turn. A safety clasp that locks flat. Sized at home in minutes with the included tool.
