Aquanaut-inspired design with stainless steel or rubber straps.

Hand-assembled, our watches feature reliable Seiko movements and premium materials — backed by the impeccable service that defines Proseiko.

Seikonaut | Blue

Seikonaut | Blue

Sale price$299.90Regular price $349.90
Seikonaut | Brown

Seikonaut | Brown

Sale price$299.90Regular price $349.90
Seikonaut | Black

Seikonaut | Black

Sale price$299.90Regular price $349.90

SEIKONAUT

A SOLID VALUE FOR A STAINLESS STEEL STRAP WATCH

Seikonaut | Green

Seikonaut | Green

Sale price$299.90Regular price $349.90
Seikonaut | Orange

Seikonaut | Orange

Sale price$299.90Regular price $349.90
Seikonaut | Silver

Seikonaut | Silver

Sale price$299.90Regular price $349.90
Seikonaut | Tiffany Blue

Seikonaut | Tiffany Blue

Sale price$299.90Regular price $349.90

YOUR HAPPINESS, OUR PROMISE

Your satisfaction is our priority. That’s why we assemble our watches in-house, carefully selecting premium materials. We also ensure fast and responsive after-sales support. A heartfelt thank you to all our customers for their trust.

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OTHER COLLECTIONS

Nautiko - Automatic Watches

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Seikoak - Automatic Watches

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Masteiko - Automatic Watches

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Justeiko - Automatic Watches

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Seikona - Automatic Watches

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Seikonaut - Automatic Watches

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FREQUENTLY ASKED QUESTIONS

HOW DO I ADJUST THE SIZE OF MY MODDED SEIKO WATCH?

Every modded watch comes with an adjustment kit, making it easy to resize the bracelet to fit your wrist perfectly for optimal comfort.

CAN I CUSTOMIZE MY SEIKO WATCH?

Yes, we offer a wide selection of unique designs and the option to create a fully personalized watch. Simply contact us via WhatsApp to design a timepiece that truly reflects your style.

DO YOU USE GENUINE SEIKO PARTS?

Our watches feature authentic NH35 movements from Seiko. While our designs are inspired by iconic models, we clearly state that our creations are neither replicas nor officially affiliated with Seiko.

CAN I REMOVE THE SEIKO LOGO FROM MY CUSTOM WATCH?

Absolutely! You can choose to remove the Seiko logo for a fully personalized design. Just let us know when placing your order, and we’ll tailor it to your request.

WHAT ARE THE DELIVERY TIMES FOR A MODDED WATCH?

Our watches are hand-assembled within 5 to 7 business days, depending on order volume. Once shipped, delivery typically takes 3 to 5 business days. You can expect to receive your watch within a total of 8 to 12 business days.

PUIS-JE RETOURNER MA MONTRE ?

Vous disposez de 30 jours à compter de la réception pour retourner votre montre modifiée. Le remboursement sera effectué sous 5 à 7 jours ouvrés après réception.

Veuillez noter que les montres entièrement personnalisées ne sont pas éligibles aux retours.

YOUR PICTURES

Aquanaut inspired, with stainless steel or rubber straps

The Seikonaut collection comes in a range of striking variants with iconic names. These automatic watches combine the look of prestigious timepieces with the handcrafted personalization that has made Proseiko renowned.