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SHOP SEIKO MODS

Rated 4.8/5 - 1.475+ Happy Customers

Seiko Mod Collections

Seiko Mod Datejust & Day Date
Seiko Mod Datejust & Day Date
Seiko Mod GMT
Seiko Mod GMT
Seiko Mod Daytona
Seiko Mod Daytona
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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Why Seiko?

Seiko’s precise movements offer unbeatable value. By pairing quality Seiko parts with your vision, we craft custom watches that match your style without a hefty price tag.

Before

Seiko Mod Aquanaut Silver Blue
Seiko Mod Aquanaut Silver Blue

After

CHOSEN BY YOU

MOST WANTED WATCHES

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The Arabic Dial watch arrived in just 12 days in Rotterdam. I had a small issue with the clasp, but support was lightning-fast and fixed it right away. Seriously impressed with the quality and service.

Tim L.

The quality impressed me so much that I ordered two more. All three arrived in Antwerp within 10 days. Outstanding company!

Sam K.

My Santos watch arrived in Amsterdam in just 12 days. The details and quality are incredible, and it feels very premium. Customer service kept me updated throughout the process.

Sven V.

My GMT watch arrived in Berlin perfectly packaged within 11 days. Top-notch quality and excellent customer service. Highly recommended!

Mats G.

The team was incredibly helpful and guided me through the entire process. My Seitona arrived within 15 days, and it’s exactly how I imagined it. Amazing service!

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 15 business days (Monday to Friday).

✅ Shipping is free worldwide, and all customs duties and import taxes are included in the price. You won’t have to pay anything upon delivery.

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.

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