Buy Once

Wear Forever

4.8/5  based on 1475+ collectors

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SEIKO MOVEMENT

Trusted Precision

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10 ATM WATERPROOF

Always Protected

60 DAY RETURNS

Risk-Free Shopping

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

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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 60-day money-back guarantee! If you’re not fully satisfied with your purchase, simply contact us within 60 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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