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Seikojust | Wimbledon -
Seikojust | White Roman -
Seikojust | Ice Blue Roman -
Seikojust | Ice Blue Arabic dial -
Seikojust | Champagne Roman -
Seikojust | Marine Blue Arabic dial -
Seikojust | Royal Green Arabic dial -
Seikodate | Roman Navy Blue -
Seikodate | Roman Olive Green -
Seikodate | Roman Green Jubilee -
Seikodate | Classic White -
Seikodate | Classic Sky Blue -
Seikojust | Who Cares I'm Already Late -
Seitona | Panda -
Seitona | Chocolate -
Seitona | Platinum -
Seitona | Ice Blue -
Seitona | Arabic dial Royal Blue -
Seitona | Arabic dial Black -
Seitona | Arabic dial Rose Gold -
Seitona | Black & White -
Seitona | Arabic dial Ice Blue -
Seitona | Silver & Gold [White] -
Seitona | Silver & Green
![Seitona Silver & Gold [White] | Seiko Daytona Mod – HourHand](http://hourhand-watches.com/cdn/shop/files/seitona-silver-gold-white-7880987.png?v=1779230539&width=1946)
What Is a Seiko Mod?
A Seiko mod is a genuine Seiko automatic or hybrid movement — NH35, NH34, NH38 or VK63 — built into premium aftermarket cases, dials, hands and bracelets inspired by the world's most iconic watch designs. Not a replica, not a knockoff — a custom-built watch that borrows the design language you actually want, running on real Seiko mechanics, at a fraction of what the original costs.
Built the HourHand Way
Every watch in this collection is hand-assembled in Sweden, with sapphire crystal and 316L stainless steel as standard — not upgrades, not add-ons, just what every build starts with. Each one gets inspected before it ships, backed by a 1-year mechanical warranty and a 30-day money-back guarantee. To be clear: HourHand watches are independently designed and built. They're not manufactured, endorsed, or affiliated with Seiko or any of the brands that inspire our designs — just built with real respect for what makes those designs work.
Shop by Style
- Datejust & Day-Date — The fluted-bezel classic, in date-only and day-date builds.
- Royal Oak — The octagonal bezel and integrated bracelet that defined the luxury sports watch.
- Nautilus — Rounded porthole case, horizontal-line dial, unmistakable from across the room.
- Daytona — Hand-assembled racing chronographs on Seiko's VK63 mecha-quartz.
- Submariner & GMT — Dive-watch toughness and dual-timezone builds on Jubilee or Oyster.
- Aquanaut — Cushion case, tropical dial, integrated rubber strap.
- Santos — Squared case, exposed screws, Roman-numeral dial.
- Sky-Dweller — Annual-calendar styling on a fluted-bezel case.
Every collection runs the same standard: sapphire crystal, 316L steel, hand-assembled in Sweden, inspected before it ships. Pick the silhouette you want — the build quality doesn't change.
NEED HELP?
FREQUENTLY ASKED QUESTIONS
What is a Seiko Mod?
A Seiko Mod is a custom-built watch, hand-assembled with a reliable automatic or hybrid Seiko movement. It's paired with premium aftermarket parts to create a watch that's uniquely yours!
Do they come with any kind of warranty?
Yes. All watches ship with a 1-year warranty covering movement-related issues.
I like a watch, but want a different strap/dial.
No problem. Message us before you order - we can customize it for you.
How long does assembly take?
Assembly takes about 7-12 business days. That's because every watch is built entirely to order. We source the parts you've chosen, hand-assemble everything with care, and run a full quality check before it ships. That way you get a custom watch built to last.
Do you ship internationally?
Yes, we ship worldwide. Standard shipping rates apply and are calculated at checkout.
MORE QUESTIONS?
Contact us