Seikomariner “Blue” – 40mm Automatic Watch

Inspired by the iconic Submariner design and powered by the prestigious Seiko NH35 automatic movement, the Seikomariner “Blue” combines elegance, precision, and accessibility in a high-end 40mm timepiece.

This watch blends classic diver sophistication with modern craftsmanship, making it perfect for enthusiasts seeking style, reliability, and comfort. Each unit is carefully hand-assembled to ensure flawless quality and durability.

Specifications

• Diameter: 40mm (excluding crown)

• Thickness: 12mm

• Movement: Seiko NH35 automatic movement

• Glass: Sapphire crystal, anti-scratch with anti-reflective coating

• Luminova: Yes (luminescent hands and markers)

• Case: 316L stainless steel

• Crown: Screw-down crown

• Bezel: Ceramic

• Bracelet: 316L stainless steel with safety clasp

• Lug Width: 20mm

• Wrist Size: Adjustable from 14.5cm to 22cm

• Case Back: Transparent crystal (open back) or solid steel (closed back)

• Water Resistance: 3 ATM

Benefits

• Distinctive blue dial and bezel for a striking diver appearance

• Reliable Seiko NH35 movement for precise and long-lasting performance

• Durable 316L stainless steel, providing superior corrosion resistance and shine

• Ceramic bezel for scratch resistance and long-lasting color

• Scratch-resistant sapphire crystal, ensuring clarity and legibility

• Expert hand-assembly, guaranteeing premium craftsmanship and attention to detail

Items Included

• 01x Seikomariner “Blue” Watch

• 01x Premium presentation box

• 01x Instruction and warranty manual

At Watch Mod, we offer you the choice to personalize your dial.

You can select:

• With logo : a Seiko mod dial, customized through the modding process.
  
• Without logo : a clean, minimalist dial with no brand marking.

This allows you to choose between a classic look or a fully sterile dial for a unique, understated finish.

Anadjustment kitis included with your Watch Mod box. This kit allows you to easily adjust your watch to your size by following the instructions provided in the package.

Our Watch Mod watches are one-of-a-kind pieces, unavailable in traditional retail stores. Our customised watches are built with a TMI movements, while the remaining components are meticulously selected for their quality and are not Seiko parts.

These unique creations are in no way affiliated with any watch brands, and we independently market our customised products. Our brand is not affiliated with Seiko in any way.

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.