Oystseiko | Tiffany Blue

Oystseiko | Tiffany Blue

36mm / Transparent
Sale price  €239,99 Regular price  €339,99
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Oystseiko | Tiffany Blue

Oystseiko | Tiffany Blue

Sale price  €239,99 Regular price  €339,99
Size
Caseback

Inspired by the iconic Oyster Perpetual design and powered by the reliable Seiko NH35 automatic movement, this timepiece is hand-assembled for precision, durability, and timeless everyday style.

✔️ Premium look & feel without luxury price

✔️ Hand-assembled by professionals

✔️ 1-Year warranty + Worldwide free shipping


🧩 Description +

The Oystseiko represents a perfect balance between minimalist design and sporty versatility. Its clean dial layout and classic proportions create a refined look that works effortlessly for both casual and formal occasions.

Designed for everyday wear, this model focuses on clarity, comfort, and reliability. The understated aesthetic makes it a timeless piece that never goes out of style.

Whether worn as a daily essential or a subtle statement, the Oystseiko delivers classic watchmaking design with modern performance.

 

⚙️ Components and Materials +

Case: 316L Stainless Steel

Diameter: 36 mm or 39 mm

Thickness: ~12 mm

Glass: Sapphire crystal with anti-reflective coating

Movement: Seiko NH35 Automatic

Functions: Time, Date display (depending on model)

Bracelet: Stainless steel (adjustable 14.5 cm – 22 cm)

Water Resistance: 3–4 ATM (splash resistant)

 

🔧 Care & Usage +

This watch is powered by a Seiko NH35 automatic movement, meaning it operates without a battery and is wound through natural wrist movement during daily wear.

If the watch is not worn for a period of time, it may stop and can be restarted by manually winding the crown.

For optimal performance, it is recommended to wear the watch regularly or wind it when needed.

The watch is water-resistant (3–4 ATM), making it suitable for daily use such as handwashing or rain, but not for swimming or diving.

To maintain accuracy and longevity, avoid strong impacts, extreme temperatures, and magnetic exposure.

Shipping & Delivery

Each watch is individually hand-assembled and made to order, ensuring exceptional craftsmanship and attention to detail.

From the moment your order is placed, it goes through a carefully structured process. This includes a processing phase (~2 days), followed by assembly and configuration (~5 days), and a final quality control stage (~3 days) to guarantee that every detail meets our standards.

In total, the production time is approximately 10 days before your watch is ready to ship. Once completed, your order is dispatched the following day.

We offer free worldwide shipping on all orders. Delivery typically takes up to 14 days, depending on your location.

Our goal is to combine precision, quality, and reliability, so your watch arrives exactly as expected. Please note that any customs duties or import taxes are the responsibility of the customer.

Returns & Warranty

As each watch is custom-built specifically for your order, standard returns are not offered. This ensures that every piece remains unique and crafted with purpose.

Your purchase is protected by our 1-year warranty, which covers any mechanical defects that are not caused by external damage or misuse.

If your watch arrives damaged during shipping, a full unboxing video is required as proof. This video must clearly show the package being opened in its original condition. Please note that claims cannot be accepted once the protective film has been removed without valid video evidence.

In verified cases of defects or shipping damage, we will always provide a fair solution. You can choose between a free replacement watch or a repair or refund, depending on the situation. In such cases, return shipping costs are fully covered by us.

Patented moddial technology

Primemod’s reengineered components bring together high-precision parts and custom finishes to elevate every second on your wrist.

Over 250+ reviews on Google from our clients

4.9 / 5.0

VERIFIED CUSTOMER

Great looking watch with nice finishing.Shipping took some time but it was worth the wait.

Lars S.

VERIFIED CUSTOMER

Watch received, everything is fine. Very elegant design and good build quality. I'm happy with the purchase.

Jerry W.

VERIFIED CUSTOMER

Everything went perfectly. The watch arrived safely and works great. Very satisfied and would definitely recommend.

Lara S.

VERIFIED CUSTOMER

The watch looks even better in person than in the photos.Comfortable to wear and feels very well made.

Martinez C.

VERIFIED CUSTOMER

Watch received, everything is fine. Very elegant design and good build quality. I'm happy with the purchase.

Simon A.

FAQ´s

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 904L stainless steel. 

Have you ever dreamed of acquiring your ideal timepiece? 

The purpose of Seiko mods is to bring the designs of luxury watches to a wider audience without resorting to counterfeit products, and by always using the best materials, such as sapphire crystal or ceramic bezels.

When will I get my order?

From the moment your order is placed, it goes through a carefully structured process. This includes a processing phase (~2 days), followed by assembly and configuration (~5 days), and a final quality control stage (~3 days) to guarantee that every detail meets our standards.

In total, the production time is approximately 10 workdays before your watch is ready to ship. Once completed, your order is dispatched the following day. Delivery typically takes up to 10 workdays, depending on your location.

Customs & Duties?

We offer free worldwide shipping on every order.

How can I adjust the strap size?

We include (for free) acomplimentary tool kitto help you adjust the strap properly.

Is it possible to remove the Seiko logo?

Absolutely! Simply add the desired watch to your cart andinclude a note in the cart section saying: "No Seiko logo".We'll take care of the rest.

How can I design 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!

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GERMAN COMPANY

From an young Team in Berlin

PREMIUM QUALITY

Watches with authentic Seiko Movements