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Seikomariner | Black & Rose Gold – Rubber Strap

€249.00

incl. VAT, free insured shipping

Available — assembled & regulated for you
Seiko Movement Sapphire Crystal 316L Steel
Ships in 7–10 business days

Your build:

Dial

1

14-day returns · Ships from Germany · 2-year warranty

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14-Day Returns

Money-back guarantee

Adjustable Strap

Fits all wrists

2-Year Warranty

For worry-free wear

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 GMT MOD a reliable daily-wear GMT watch.

Key Features

• Genuine Seiko NH35 automatic 
• Automatic with hacking & hand-winding
• 316L stainless steel case and rubber 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.

Specifications
Movement
NH35 Automatic
Case
40 mm
Crystal
Sapphire Crystal
Material
316L Stainless Steel
Water resistance
5 ATM
Dial
Black Dial
Shipping & returns

Every watch is hand-assembled to order and ready to ship in 7–10 business days. Insured shipping from Germany. 14-day returns and a 2-year movement warranty.

FAQ
What is a Seiko mod?
A Seiko mod is a modified watch that uses an authentic Seiko movement, combined with third-party high-quality parts. Most of our watches come in stainless steel with sapphire crystal.
How long will it take to receive my watch?
When you place an order, we order the parts for your design right away. The entire process usually takes about 20 days: parts normally arrive within 2–3 weeks (including weekends). When we receive the parts, we build the watch the same day and ship it as soon as possible after assembly. Watches in stock from time to time ship faster.
Can I customize the logo or remove it?
Absolutely. Send us an email with your order number and full name after ordering, stating your desired design or that you want to remove the logo. You can also leave a note at checkout, or contact us before ordering.

MedoMods is an independent maker and is not affiliated with or endorsed by Seiko, Rolex, Patek Philippe, Audemars Piguet or any other brands mentioned. Third-party model names are used descriptively (homage style) only.

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Seikomariner | Black & Rose Gold – Rubber Strap

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2-Year Warranty
14-Day Returns
Ships from Germany
Secure Checkout