4.8/5 – 1.475+ satisfied customers
Seiko Mod Nautilus | Black
Seiko Mod Nautilus | Black
Watch box gift + tool
2-Year warranty
30-day return policy
Couldn't load pickup availability
Buy 2, Get 1 Free — Add 3 watches to cart, 3rd is FREE.
No code needed — discount applies automatically.
Seiko Mod Nautilus | Black
Features & Specifications
Features & Specifications
Inspired by the legendary Nautilus silhouette, the Seiko Mod Nautilus features the renowned Seiko NH35 automatic movement and a striking Rose dial. With its 40mm case and integrated bracelet, it offers bold elegance and everyday functionality.
Why the Seiko Mod Nautilus is a daily wear:
- Case size: 41mm
- 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 butterfly clasp
- Water resistance: 3 ATM
Shipping
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
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.
YOUR SATISFACTION ABOVE ALL
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 |
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.
The quality impressed me so much that I ordered two more. All three arrived in Antwerp within 11 days. Outstanding company!
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.
My GMT watch arrived in Berlin perfectly packaged within 11 days. Top-notch quality and excellent customer service. Highly recommended!
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!
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.
Customer Reviews
The aesthetics and quality of the watch seem very good in real life. The GMT hand is very beatiful
The watches LOOK PERFECT!
Beatiful watch all GMT functions , in love
Spectacular luxury quality, very beatiful watches, one of the best i've seen.
The best quality price ratio, Would really recommended it.
Social
TAG US @TWTCUSTOMWATCHES AND GET FEATURED!
