4.8/5  based on 1475+ collectors

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SEIKO MOVEMENT

Trusted Precision

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BUILT IN THE NETHERLANDS

Handcrafted in a small Dutch workshop.

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WATERPROOF

Always Protected

Seiko Mod Collections

Seiko Mod Daytona
Seiko Mod Daytona
Seiko Mod Datejust & Day Date
Seiko Mod Datejust & Day Date
Seiko Mod GMT
Seiko Mod GMT
Seiko Mod Nautilus
Seiko Mod Nautilus
Seiko Mod Royal Oak
Seiko Mod Royal Oak
Seiko Mod SubMariner
Seiko Mod SubMariner
Seiko Mod Santos
Seiko Mod Santos
Seiko Mod Speedmaster
Seiko Mod Speedmaster
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VIEW ALL
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Crafted in The Netherlands. Powered by Seiko.

We merge Seiko’s renowned precision with Dutch craftsmanship. Every TWT Custom Watch is hand-assembled by two enthusiasts who turn passion into timeless design.

Before

Seiko Mod Aquanaut Silver Blue
Seiko Mod Aquanaut Silver Blue

After

CHOSEN BY YOU

MOST WANTED WATCHES

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The quality impressed me so much that I ordered two more. All three arrived in Amsterdam within 11 days. Outstanding company!

Sam K.

The shipping was smooth, the watch came ready to wear, and the presentation box made it feel like a real luxury unboxing. I went for the arabic dial with president bracelet—timeless look. Honestly, I could’ve blown 8k for a Rolex, but this feels smarter, like I hacked the system. That’s why I’ll keep coming back—style, quality, and no debt attached.

Tim L.

I was skeptical at first—would it feel cheap? The moment I unboxed it, that doubt disappeared. The movement is smooth, the finishing is clean, and it just feels premium. Since wearing it, I’ve had strangers compliment me. For under €300, I honestly don’t know a smarter buy.

Chris B.

What I love is that it doesn’t scream ‘look at me,’ but people still notice. It’s subtle luxury. I feel like I outsmarted the entire watch industry—got exactly what I wanted without getting ripped off.

Sven V.

My GMT watch arrived in Breda perfectly packaged within 13 days. Top-notch quality and excellent customer service. Highly recommended!

Mats G.

My buddies couldn’t believe it wasn’t a luxury piece. One of them literally said, ‘Bro, that looks like a €10k watch.’ That reaction alone was worth the price. It’s confidence on my wrist, plain and simple.

Ahmed D.

Have a Question? We're Here to Assist!

FREQUENTLY ASKED QUESTIONS

What is a Seiko mod?

Seiko is a trusted Japanese brand known for its accuracy, durability, and advanced movements. We use Seiko parts as the foundation for our custom modifications, as they provide the quality and versatility needed for creating one-of-a-kind pieces.

How long does shipping take?

Production & Delivery Timeline

  • 2 to 4 business days to build your custom watch.
  • 1 to 2 additional days for rigorous testing and performance checks.
  • 4 to 8 business days depending on your location.

In total, the full process, from production to delivery takes approximately 7 to 14 business days (Monday to Friday).

✅ Shipping is free worldwide,

How do I adjust the strap size?

We include a free tool with every watch to make adjusting the strap size easy. With this tool, you can quickly add or remove links for the perfect fit.

Do you offer a money-back guarantee?

Yes, we offer a 30-day money-back guarantee! If you’re not fully satisfied with your purchase, simply contact us within 30 days of receiving your order for a full refund. The item must be in its original condition and packaging. Reach out to our customer service team to start your return process, and we’ll handle it as quickly as possible.

Seiko Mod Datejust | Olive Green - TWTwatches

SEIKO MOD DATEJUST | OLIVE GREEN

HORLOGE VAN DE MAAND

Lijkt op een horloge van €10.000. Voelt als verdiend zelfvertrouwen. Gemaakt voor mannen die weten dat echte stijl geen kroon nodig heeft — alleen présence.

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