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Seiko Mod Datejust Oyster | Tiffany

Name: Seiko Mod Datejust Oyster | Tiffany
Brand: TWTwatches
SKU: 49750257992010
Price: 249.0 EUR
Availability: InStock
Rating: 4.82 (208 reviews)

Watch box gift + tool

2-Year warranty

30-day return policy

€249,00

€249,00 ~~€349,00~~

SAVE 30% Sold out

Logo No Logo Seiko Logo

Case Diameter 36mm 39mm

Product variants

Buy 2, Get 1 Free — Add 3 watches to cart, 3rd is FREE.

No code needed — discount applies automatically.

Seiko Mod Datejust Oyster | Tiffany

€249,00

€249,00 ~~€349,00~~

SAVE 30% Sold out

Features & Specifications

Inspired by the timeless Oyster design, the Seiko Mod Datejust Oyster is powered by the trusted Seiko NH35 automatic movement and available in both 36mm and 39mm sizes — a clean, minimalist statement for any collection.

Why the Seiko Mod Datejust Oyster Tiffany is a daily wear?

Case size: 36mm or 39mm
Movement: Seiko NH35 automatic
Thickness: 12mm
Crystal: Sapphire, scratch-resistant & anti-reflective
Lume: Yes (luminova)
Case: 316L stainless steel
Crown: Screw-down
Wrist fit: 14.5 – 22 cm (adjustable)
Lug width: 20mm
Bracelet: 316L stainless steel with secure clasp
Water resistance: 3 ATM

Shipping

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.

Warranty

Each watch crafted in our workshop comes with a free 2-year warranty. This warranty covers any manufacturing defects and operational issues under normal usage. However, please note that we are notresponsiblefor any damage caused to the watch due to misuse or accidents.

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Seiko Movement

Automatic, self-winding, with over 41 hours of power reserve. Trusted by watchmakers worldwide for its accuracy and reliability.

Waterproof

Water-sealed to 3ATM — perfect for daily wear, rain, and splashes.

Sapphire Crystal

Ultra-clear, scratch-resistant sapphire glass. Your watch stays sharp — whatever life throws your way.

WHY CHOOSE US?

Most Seiko Mods Brands cut corners with cheap parts and poor assembly. TWT delivers handcrafted, high-quality builds made to last.

	TWT	OTHERS
Built by skilled watchmakers
Water-resistant, tested manually
Each piece quality-checked
600+ 5-star reviews
Reliable delivery
Authentic Seiko movements
Backed by warranty

Seiko Mod Nautilus | Rose Gold TWTwatches

LUXURY UNBOXED

Deluxe Inner and Outer Watch Box

At TWT, every watch arrives in a premium black leather box with suede lining and a secure holder. We also include a free toolkit so you can adjust your strap for the perfect fit. We make unboxing as exciting as the watch itself!

The Arabic Dial watch arrived in just 12 days in Rotterdam. I had a small issue with the clasp, but support was lightning-fast and fixed it right away. Seriously impressed with the quality and service.

Tim L.

The quality impressed me so much that I ordered two more. All three arrived in Antwerp within 11 days. Outstanding company!

Sam K.

My Santos watch arrived in Amsterdam in just 12 days. The details and quality are incredible, and it feels very premium. Customer service kept me updated throughout the process.

Sven V.

My GMT watch arrived in Berlin perfectly packaged within 11 days. Top-notch quality and excellent customer service. Highly recommended!

Mats G.

The team was incredibly helpful and guided me through the entire process. My Seitona arrived within 15 days, and it’s exactly how I imagined it. Amazing service!

Ahmed D.

Have a Question? We're Here to Assist!

FREQUENTLY ASKED QUESTIONS

What is a Seiko mod?

Seiko is a trusted Japanese brand known for its accuracy, durability, and advanced movements. We use Seiko parts as the foundation for our custom modifications, as they provide the quality and versatility needed for creating one-of-a-kind pieces.

How long does shipping take?

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.

How do I adjust the strap size?

We include a free tool with every watch to make adjusting the strap size easy. With this tool, you can quickly add or remove links for the perfect fit.

Do you offer a money-back guarantee?

Yes, we offer a 30-day money-back guarantee! If you’re not fully satisfied with your purchase, simply contact us within 30 days of receiving your order for a full refund. The item must be in its original condition and packaging. Reach out to our customer service team to start your return process, and we’ll handle it as quickly as possible.