Estimated delivery date: 22 October – 27 October 2025
Inspired by the iconic Seamaster design and powered by the reliable Seiko NH35 automatic movement, this timepiece is hand-assembled for precision and style.
✔
Premium look & without luxury price
✔
Hand-assembled by professionals
✔
1-Year warranty + Worldwide express shipping
Description
Crafted with 316L stainless steel, it offers a robust and elegant case built to last.
Sapphire crystal glass ensures scratch resistance and clear visibility, enhanced with anti-reflective treatment.
Tested for waterproofing, and finished with a ceramic bezel and decorative helium valve for added dive-inspired detail.
Diameter: 41 mm
Thickness: 12 mm
Glass: Sapphire, anti-reflective
Bracelet: Adjustable (14.5 cm – 22 cm)
Movement: Seiko NH35 Automatic
Waterproof: Tested & approved
A modern Seiko mod — adventurous, sleek, and built for the deep.
Components and materials
Genuine Seiko movement
Sapphire crystal, anti-scratch with anti-reflective treatment
316L stainless steel
Shipping & Returns
Free Express Shipping on orders over €150 With the option of Express or Premium shipping rates at checkout. Duties and taxes are included.
Returns We offer a 30-day return policy on all orders. To initiate a return, please contact our customer service team at support@moddys-watches.com
What is an automatic watch?
An automatic watch works without a battery: it recharges itself thanks to the movements of your wrist. As long as you wear it every day, it continues to work. If you leave it unused for more than 42 hours, it simply stops and starts again as soon as you put it back on or by slightly turning the crown.
This type of mechanism, derived from traditional watchmaking know-how, is more complex and refined than a classic quartz mechanism (battery).
📚
A portion of every order is donated to youth education programs to help build a brighter future, one watch at a time.
Seikomaster | Blue
No logo
Sale price€299.95Regular price€349.95
Loved by 100,000+ happy customers.
Free Express Shipping
2 Year Warranty
ISO-Certified Durability
30-Day Hassle Free Returns
Need help?
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
Shipping Information
Use this text to answer questions in as much detail as possible for your customers.
Customer Support
Use this text to answer questions in as much detail as possible for your customers.
FAQ’s
Use this text to answer questions in as much detail as possible for your customers.
Contact Us
Use this text to answer questions in as much detail as possible for your customers.
Premium craftsmanship in every timepiece
At Moddy’s, we don’t do cheap replicas or mass-produced knockoffs. Every watch is crafted using premium-grade materials and precision-engineered parts, delivering the durability, weight, and feel of true luxury.
Patented moddial technology
Moddy’s reengineered components bring together high-precision parts and custom finishes to elevate every second on your wrist.
Luxury in Every Detail
SEIKO MOVEMENT
Automatic, self-winding, 41+ hour power reserve, and trusted in the watch industry for its accuracy.
WATER RESISTANT
3ATM water-resistant, perfect for daily wear and protected against rain or everyday water splashes.
SAPPHIRE CRYSTAL
Fitted with sapphire crystal, ultra-clear, scratch-resistant. Your watch stays sharp, no matter what.
STAINLESS STEEL
Crafted from 316L stainless steel, the same grade used by luxury watch brands. Built to shine for a lifetime.
Why Moddy is the perfect choice.
The modded watch that combines precision mechanics with iconic design - built just for you.
Superior Materials
Unmatched Craftsmanship
Built to Last
Guaranteed Quality
Hand-assembled by professionals
Tested for waterproof sealing & durability
Only original Seiko movements & premium parts
Zero cheap Chinese clones
500+ ★★★★★ reviews
Fast global shipping with tracking & insurance
Covered by a no-worry warranty & satisfaction guarantee
AS SEEN IN
Try It Risk-Free for 30 Days
Not feeling it? No worries, send it back. We’ll refund you, no questions asked.
Moddy's each watch is carefully built by hand, using high-quality parts and custom details.
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.
Shipping Time? | Customs & Duties?
Assembly: Takes 2-4 working days to put together your watch.
Quality Testing: After assembly, we spend another 1-3 days on testing and quality checks to ensure optimal performance.
Shipping: Your watch is then shipped, which typically requires 4-8 working days.
Overall, the entire process from start to finish spans 7-15 working days (Monday-Friday), ensuring each watch meets our high standards before it reaches you.
About the cost, shipping is totally free, and we have also included your country's import duties in the price, so you won’t incur any additional charges or fees during the delivery of your watch.
Please note that delivery times may vary depending on the destination country.
How can I adjust the strap size?
We include (for free) a complimentary tool kit to help you adjust the strap properly.
Please refer to this guide and follow the instructions carefully to adjust your strap size: Guide
Is it possible to remove the Seiko logo?
Absolutely. We provide the flexibility to customize your watch according to your preferences, including the option to remove the Seiko mark.
Please choose the option Logo - No logo and include your specific requirements in a message when placing your order if needed.
How can I design my own watch?
You can choose/customize your bracelet, case, dial, hands, and even add your own logo or initials.
If you want a personalized watch, please contact us on WhatsApp to discuss your options with one of our watchmakers.
Choosing a selection results in a full page refresh.
