Description

Inspired by the iconic Royal Oak design, and featuring the prestigious Seiko NH35 automatic movement, we present the Royal seikoak. A 41 mm high quality watch combining the perfect alliance between excellence and accessibility.

Carefully assembled by experts with the next features:

  • Diameter: 41mm (excluding the crown)
  • Movement: Seiko NH35 automatic movement
  • Thickness: 12mm
  • Glass: Sapphire, anti-scratch with anti-reflective treatment
  • Luminescent: Yes
  • Case: 316L brushed stainless steel
  • Crown: Screwed
  • Wrist size: 14,5cm to 22cm (adjustable)
  • Lugs: 20mm
  • Bracelet: 316L stainless steel (with a butterfly security clasp)
  • Case back: Crystal (seen movement)
  • Water resistance: 3 ATM
  • Power reserve: 41 Hours

Disclaimer:
This is a custom-built timepiece using genuine Seiko components, such as the movement. It is a third-party modification and is not affiliated with, endorsed by, or manufactured by Seiko Watch Corporation. “Seiko” is mentioned only to describe the origin of certain parts used in this custom build. All trademarks are the property of their respective owners.


Shipping & Returns

Free express delivery is included for every location we ship to. Returns are accepted within 30 days when the watch is unworn and returned in its original condition and packaging.


Can I service my watch locally?

Yes. Any competent local watchmaker can service your watch. We use genuine, dependable Seiko automatic calibres renowned for their durability, so maintenance is rarely required under normal wear.


What is an automatic watch?

An automatic watch has no battery. The movement of your wrist winds its mechanical movement while you wear it. If left unworn for around 42 hours it may stop; simply wear it again or gently turn the crown to restart it. This traditional watchmaking mechanism is more intricate than quartz.


What makes our watches high quality?

Every watch is built with a genuine Seiko automatic movement, scratch-resistant sapphire crystal and corrosion-resistant 316L stainless steel. Each piece is assembled, regulated and inspected before dispatch.


Description

Inspired by the iconic Royal Oak design, and featuring the prestigious Seiko NH35 automatic movement, we present the Royal seikoak. A 41 mm high quality watch combining the perfect alliance between excellence and accessibility.

Carefully assembled by experts with the next features:

  • Diameter: 41mm (excluding the crown)
  • Movement: Seiko NH35 automatic movement
  • Thickness: 12mm
  • Glass: Sapphire, anti-scratch with anti-reflective treatment
  • Luminescent: Yes
  • Case: 316L brushed stainless steel
  • Crown: Screwed
  • Wrist size: 14,5cm to 22cm (adjustable)
  • Lugs: 20mm
  • Bracelet: 316L stainless steel (with a butterfly security clasp)
  • Case back: Crystal (seen movement)
  • Water resistance: 3 ATM
  • Power reserve: 41 Hours

Disclaimer:
This is a custom-built timepiece using genuine Seiko components, such as the movement. It is a third-party modification and is not affiliated with, endorsed by, or manufactured by Seiko Watch Corporation. “Seiko” is mentioned only to describe the origin of certain parts used in this custom build. All trademarks are the property of their respective owners.


Shipping & Returns

Free express delivery is included for every location we ship to. Returns are accepted within 30 days when the watch is unworn and returned in its original condition and packaging.


Can I service my watch locally?

Yes. Any competent local watchmaker can service your watch. We use genuine, dependable Seiko automatic calibres renowned for their durability, so maintenance is rarely required under normal wear.


What is an automatic watch?

An automatic watch has no battery. The movement of your wrist winds its mechanical movement while you wear it. If left unworn for around 42 hours it may stop; simply wear it again or gently turn the crown to restart it. This traditional watchmaking mechanism is more intricate than quartz.


What makes our watches high quality?

Every watch is built with a genuine Seiko automatic movement, scratch-resistant sapphire crystal and corrosion-resistant 316L stainless steel. Each piece is assembled, regulated and inspected before dispatch.

AFTER PURCHASE SUPPORT

Ongoing Servicing, support and spare parts whenever you need them.

Servicing & Regulation

Cleaning, regulation and maintenance to keep your watch performing accurately.

Ongoing Support

Friendly aftercare and expert guidance whenever you need it.

2 Year Warranty

Every watch is protected by our comprehensive two-year warranty.

Spare Parts & Replacements

Replacement links, straps and essential parts are available when required.

The Mod LABS

TRUSTED BY WATCH LOVERS WORLD WIDE

4.7 / 5   ★★★★★ – Loved by over 800 watch lovers

What you Actually Receive

Engineered for Daily Wear

Designed to feel comfortable, reliable and effortless every day.

High Calibre Genuine Seiko Movements

Proven automatic movements delivering dependable, precise mechanical performance.

Functional by Design

From rotating bezels and hacking seconds to GMT functionality, every feature is made to work as intended.

High-grade 316L Stainless Steel

Built for durability, corrosion resistance and a premium finish.

Hand Built to Your Order

Individually assembled by hand with care and attention to detail.

Ultra Durable Sapphire Crystal

Highly scratch resistant for lasting clarity and everyday protection.

Made for Every Moment

From the morning commute to late-night drives, every watch from The Mod Labs is designed to complement your everyday. Built with premium materials, timeless design and reliable performance, it’s a watch made to be worn—not kept in a box.

Q&A’s

Please read our Q&A’s page for more information.

What is a Seiko Mod?

A Seiko mod is a customised watch assembled using compatible components and a reliable movement. Replace this placeholder answer with your approved brand wording.

How Can I Adjust the Size of my Watch?

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Is it Possible to Customize my Watch?

Explain the available cases, dials, hands, straps, finishes, and made-to-order process here.

Do you use Authentic Seiko movements?

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Can I Order a Watch Without the Seiko Logo?

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What are the Production and Delivery Times?

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