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, your watch is hand-assembled, regulated and inspected after purchase. Total delivery usually takes 12–15 days. With Priority Build (€9.99) your watch moves to the front of the bench — this does not promise an earlier delivery date.

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.

Seiko Mod Uhr Automatik - 41 mm - Gehäuseboden aus Stahl – am Handgelenk – Wristshot – MedoMods

Seiko Mod Uhr Automatik - 41 mm - Gehäuseboden aus Stahl – Flatlay auf Schiefer – MedoMods

Seiko Mod Uhr Automatik - 41 mm - Gehäuseboden aus Stahl – Zifferblatt Nahaufnahme – MedoMods

Automatic - 41mm - Steel caseback

Name: Automatic - 41mm - Steel caseback
Brand: MedoMods
SKU: automatic-41mm-steel-caseback
Price: 289.00 EUR
Availability: InStock

€289.00

incl. VAT, free insured shipping

Available — assembled & regulated for you

Seiko Movement Sapphire Crystal 316L Steel

Delivery in 12–15 days · Priority Build +€9.99 Ships from Germany

Movement: NH35 Automatic
Case: 41 mm
Crystal: Sapphire Crystal
Water resistance: 5 ATM

Quantity

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

Build your own Nautilus-style custom watch with the Seiko Mod Configurator by MedoMods. Choose your dial, bezel, case finish and bracelet to create a clean, timeless look that fits your style.

Each configuration is built around a reliable Seiko automatic movement and assembled by hand using high-quality aftermarket components. Every watch is regulated and quality-checked before shipping to ensure consistent performance and a premium feel on the wrist.

What you can customize:
• Dial color and layout
• Bezel style and case finish
• Bracelet or strap options

SPECIFICATIONS (Applies to this collection)

Case diameter: 41mm (excluding crown)
Movement: NH35 automatic (hacking & hand-winding)
Case thickness: approx. 12mm (may vary slightly by variant)
Crystal: Sapphire, scratch-resistant with anti-reflective coating
Case material: Stainless steel (material grade may vary by variant)
Lume: High-visibility lume (variant-specific)
Crown: Screw-down
Bracelet: Stainless steel (integrated fit) with secure clasp
Wrist size: approx. 14.5cm – 22cm+ (adjustable; for extra links, leave a note at checkout)
Caseback: Exhibition / crystal caseback
Water resistance: 5 ATM (hand-washing & light swimming; not for diving)

Please note: Watches built with this configurator are custom Seiko mod watches inspired by classic Datejust-style design. They are not original Seiko or Rolex products. MedoMods is not affiliated with, sponsored by or endorsed by Seiko, Rolex or any other watch brand.

Start building your custom watch now and create a piece that feels truly personal.

Specifications

Movement: NH35 Automatic
Case: 41 mm
Crystal: Sapphire Crystal
Material: 316L Stainless Steel
Water resistance: 5 ATM
Strap: Integrated Bracelet

Shipping & returns

Every watch is hand-assembled, regulated and inspected after your order. Delivery usually takes 12–15 days — with Priority Build (€9.99, selectable at checkout) your watch moves to the front of the bench. Insured shipping with tracking 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, your watch is hand-assembled, regulated and inspected after purchase. Total delivery usually takes 12–15 days. With Priority Build (€9.99) your watch moves to the front of the bench — this does not promise an earlier delivery date.
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.