Original Seiko movement

Seikomariner | Black on Black

€229,00 EUR

✔️ Original Seiko movement

✔️ 14-day returns + 1-Year warranty

Dial Type:

With Logo No Logo

Variant

Built in 24h • Delivery 7–8 days

Description

Seikomariner – Automatic Diver Watch

The Seikomariner Diver is a custom-built automatic watch designed for precise dual-time tracking and everyday reliability. Powered by the genuine Seiko NH35 GMT automatic movement, it offers true GMT functionality with a bold, modern design and a strong wrist presence.
Crafted from durable 316L stainless steel, the case and bracelet deliver excellent corrosion resistance, long-term durability, and a refined finish. A sapphire crystal provides strong scratch resistance and clear legibility, making GMTEIKO a reliable daily-wear GMT watch.

Key Features

• Genuine Seiko NH35 automatic
• Automatic with hacking & hand-winding
• 316L stainless steel case and bracelet
• Sapphire crystal, scratch-resistant
• Adjustable bracelet for a secure, comfortable fit
• Free bracelet adjusting tool included

Specifications

• Case diameter: 40 mm (excluding crown)
• Thickness: approx. 12 mm
• Movement: Seiko NH35 Automatic
• Crystal: Sapphire (anti-scratch)
• Bracelet: 316L stainless steel, adjustable (approx. 14.5 cm – 22 cm)
• Water resistance: 5ATM

Components & Materials

• Case: 316L Stainless Steel
• Bracelet: 316L Stainless Steel
• Crystal: Sapphire
• Movement: Seiko NH35 GMT Automatic

Build, QC & Shipping

Each watch is assembled, checked, and quality-controlled before shipping to ensure proper function and finish.
We offer international free tracked and secured shipping. Taxes and customs duties are included, with no additional fees on delivery. Delivery times may vary depending on destination and order volume.

A free bracelet adjusting tool is included for easy at-home sizing.

Disclaimer

This is an independently built custom mod watch assembled with aftermarket components and a genuine Seiko movement. It is not an original product of any other watch manufacturer and is not affiliated with, sponsored by, or endorsed by any third-party brand. All trademarks belong to their respective owners.

Seikomariner | Black on Black

€229,00 EUR

Need help?

Frequently Asked Questions

Can I adjust the strap size?

We include a complimentary tool kit (for free) on all orders to help you adjust the strap properly.

What movements do you use?

We use Seiko automatic movements such as NH34, NH35 NH36, NH38, NH70, NH72, VK63, VK64 and VK61

Recognised globally, these movements ensure flawless function to match your daily pace.

Do they have any type of warranty?

Yes, all our watches come with a 1-year warranty covering any manufacturing defects, particularly in the movement, to ensure optimal performance.

If you experience any functionality issues or other problems, please contact us.

I like a watch, but i want another strap / dial.

We can create your piece 100% custom-made. Just contact us via WhatsApp or on Mail: info@medomods.com and together we'll explore the possibilities. You'll receive a response within 24 hours.

Where are watches assembled?

We assemble as many of our watches as possible in Germany, but to reduce wait times for our customers, we may use partner workshops in other cities across Asia. Some custom watches may be assembled outside the country due to certain workshops not selling their parts individually.

If you have any questions regarding the assembly location, please don’t hesitate to contact us, as our mission is to ensure your complete satisfaction.

Are you affiliated with Seiko?

No, under no circumstances.

We use original Seiko automatic movements for their quality and reliability. Each watch is then assembled with custom parts exclusively for each client.

Can I customise my own watch?

Absolutely! We're committed to turning your dream watch into reality. Customize every detail, from the dial and hands to the case and strap, to create a timepiece that perfectly matches your style.

Craft your dream watch with our expertise. Write us to start designing!

Are they waterproof?

Our watches have a water resistance of 5 ATM, this mean that they are designed to be water-resistant for everyday situations, such as splashes or rain. However, we do not recommend using them for diving.

I can't find the watch I'm looking for.

Given the thousands of possible combinations, we can't display them all on our website. Please contact us via WhatsApp, TikTok or Mail with the model you're interested in, and we will assemble it as a custom order exclusively for you.

WhatsApp: +4915122683564

TikTok: medomods3

Mail: info@medomods.com

What is a Seiko Mod?

A Seiko Mod is a special watch hand-assembled from a prestigious Seiko automatic or hybrid movement, combined with high-quality aftermarket parts, usually made of 316L stainless steel.

Seikomariner | Black on Black

Seikomariner | Black on Black

Accesories

Frequently Asked Questions