![Stainless steel Seiko mod Oyster with light blue dial and silver hands, Oysteiko Tiffany Blue](http://moddys-watches.com/cdn/shop/files/seiko-mod-oyster-33-39mm-nh35-automatic-movement-904l-stainless-541.webp?v=1725513817&width=1500)
![Stainless steel Seiko Mod Oyster watch with light blue dial and metal bracelet](http://moddys-watches.com/cdn/shop/files/seiko-mod-oyster-33-39mm-nh35-automatic-movement-904l-stainless-509.webp?v=1725513829&width=3000)
![Seiko Mod Oyster watch featuring a light blue dial and stainless steel bracelet](http://moddys-watches.com/cdn/shop/files/seiko-mod-oyster-33-39mm-nh35-automatic-movement-904l-stainless-541_9319eb69-ebf7-4c2f-b6b0-239ae3c74e89.webp?v=1725513837&width=1500)
![Silver metal Seiko Mod Oyster wristwatch with a chunky Tiffany Blue bracelet](http://moddys-watches.com/cdn/shop/files/seiko-mod-oyster-33-39mm-nh35-automatic-movement-904l-stainless-763.webp?v=1725513850&width=3000)
![Seiko Mod Oyster wristwatch with a light blue dial and silver metal bracelet](http://moddys-watches.com/cdn/shop/files/seiko-mod-oyster-33-39mm-nh35-automatic-movement-904l-stainless-818.webp?v=1725513862&width=3000)
![Stainless steel Seiko Mod Oyster wristwatch with Tiffany Blue dial and metal bracelet](http://moddys-watches.com/cdn/shop/files/seiko-mod-oyster-33-39mm-nh35-automatic-movement-904l-stainless-299.webp?v=1725513876&width=3000)
![Sleek Oysteiko Tiffany Blue wristwatch showcasing a metallic case and crown, perfect for Seiko mod fans](http://moddys-watches.com/cdn/shop/files/seiko-mod-oyster-33-39mm-nh35-automatic-movement-904l-stainless-243.webp?v=1725513888&width=3000)
![Metal watch bracelet of Oysteiko Tiffany Blue on wooden surface with tree rings, Seiko mod](http://moddys-watches.com/cdn/shop/files/seiko-mod-oyster-33-39mm-nh35-automatic-movement-904l-stainless-924.webp?v=1725513901&width=3000)
![Mechanical watch movement of Oysteiko Tiffany Blue revealing Seiko mod oyster craftsmanship](http://moddys-watches.com/cdn/shop/files/seiko-mod-oyster-33-39mm-nh35-automatic-movement-904l-stainless-393.webp?v=1725513914&width=3000)
![Mechanical watch movement in Oysteiko Tiffany Blue, featuring Seiko mod Oyster design](http://moddys-watches.com/cdn/shop/files/seiko-mod-oyster-33-39mm-nh35-automatic-movement-904l-stainless-276.webp?v=1725513925&width=3000)
![Closed back of Seiko Mod Oyster watch with a stylish white bracelet in Tiffany Blue](http://moddys-watches.com/cdn/shop/files/seiko-mod-oyster-33-39mm-nh35-automatic-movement-904l-stainless-502.webp?v=1725513937&width=3000)
Oysteiko Tiffany Blue
![](http://moddys-watches.com/cdn/shop/files/3.png?v=1713272370&width=1000)
1 Year warranty included
![](http://moddys-watches.com/cdn/shop/files/1.png?v=1713272370&width=1000)
Leather watch box gift + tool kit
![](http://moddys-watches.com/cdn/shop/files/2.png?v=1713272370&width=1000)
Free express worldwide shipping
Inspired by the iconic Oyster design, and featuring the prestigious Seiko NH35 automatic movement, we present the Seiko Mod Oyster. A 36 / 39 mm high-end quality watch combining the perfect alliance between excellence and accessibility.
Carefully hand-assembled by experts with the next features:
- Diameter: 36 or 39mm (excluding the crown)
- Movement: Seiko NH35 automatic movement
- Thickness: 12mm
- Glass: Sapphire, anti-scratch with anti-reflective treatment
- Luminova: Yes
- Case: 316L stainless steel
- Crown: Screwed
- Wrist size: 14,5cm to 22cm (adjustable)
- Lugs: 20mm
- Bracelet: 316L stainless steel (with a security clasp)
- Case back: Crystal (seen movement) / Steel (closed back)
- Water resistance: 3 ATM
Buy 2 or more watches
And get a 20% off the full order
Choose options
![Stainless steel Seiko mod Oyster with light blue dial and silver hands, Oysteiko Tiffany Blue](http://moddys-watches.com/cdn/shop/files/seiko-mod-oyster-33-39mm-nh35-automatic-movement-904l-stainless-541.webp?v=1725513817&width=1500)
![Stainless steel Seiko Mod Oyster watch with light blue dial and metal bracelet](http://moddys-watches.com/cdn/shop/files/seiko-mod-oyster-33-39mm-nh35-automatic-movement-904l-stainless-509.webp?v=1725513829&width=3000)
![Seiko Mod Oyster watch featuring a light blue dial and stainless steel bracelet](http://moddys-watches.com/cdn/shop/files/seiko-mod-oyster-33-39mm-nh35-automatic-movement-904l-stainless-541_9319eb69-ebf7-4c2f-b6b0-239ae3c74e89.webp?v=1725513837&width=1500)
![Silver metal Seiko Mod Oyster wristwatch with a chunky Tiffany Blue bracelet](http://moddys-watches.com/cdn/shop/files/seiko-mod-oyster-33-39mm-nh35-automatic-movement-904l-stainless-763.webp?v=1725513850&width=3000)
![Seiko Mod Oyster wristwatch with a light blue dial and silver metal bracelet](http://moddys-watches.com/cdn/shop/files/seiko-mod-oyster-33-39mm-nh35-automatic-movement-904l-stainless-818.webp?v=1725513862&width=3000)
![Stainless steel Seiko Mod Oyster wristwatch with Tiffany Blue dial and metal bracelet](http://moddys-watches.com/cdn/shop/files/seiko-mod-oyster-33-39mm-nh35-automatic-movement-904l-stainless-299.webp?v=1725513876&width=3000)
![Sleek Oysteiko Tiffany Blue wristwatch showcasing a metallic case and crown, perfect for Seiko mod fans](http://moddys-watches.com/cdn/shop/files/seiko-mod-oyster-33-39mm-nh35-automatic-movement-904l-stainless-243.webp?v=1725513888&width=3000)
![Metal watch bracelet of Oysteiko Tiffany Blue on wooden surface with tree rings, Seiko mod](http://moddys-watches.com/cdn/shop/files/seiko-mod-oyster-33-39mm-nh35-automatic-movement-904l-stainless-924.webp?v=1725513901&width=3000)
![Mechanical watch movement of Oysteiko Tiffany Blue revealing Seiko mod oyster craftsmanship](http://moddys-watches.com/cdn/shop/files/seiko-mod-oyster-33-39mm-nh35-automatic-movement-904l-stainless-393.webp?v=1725513914&width=3000)
![Mechanical watch movement in Oysteiko Tiffany Blue, featuring Seiko mod Oyster design](http://moddys-watches.com/cdn/shop/files/seiko-mod-oyster-33-39mm-nh35-automatic-movement-904l-stainless-276.webp?v=1725513925&width=3000)
![Closed back of Seiko Mod Oyster watch with a stylish white bracelet in Tiffany Blue](http://moddys-watches.com/cdn/shop/files/seiko-mod-oyster-33-39mm-nh35-automatic-movement-904l-stainless-502.webp?v=1725513937&width=3000)
Need help?
frequently asked questions
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.
- Assembly: Takes 2 working days to put together your watch.
- Quality Testing: After assembly, we spend another 2 days on testing and quality checks to ensure optimal performance.
- Shipping: Your watch is then shipped, which typically requires 5-8 working days.
Overall, the entire process from start to finish spans 9-12 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.
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
Absolutely. We provide the flexibility to customize your watch according to your preferences, including the option to remove the Seiko mark.
Please include your specific requirements in a message when placing your order.
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.
![](http://moddys-watches.com/cdn/shop/files/2_6ddd7c31-5da9-4041-8fae-ac2660cf9cb1.jpg?v=1718736632&width=1200)
Luxury Unboxed
Elevate Your Experience
At Moddy´s, we go beyond watches. Each watch comes in a fancy leather box that shows our commitment to quality. And that's not all; every purchase includes a free toolkit with a guide to help you adjust your watch strap for a perfect fit. Plus, we add cool stickers and surprises to make your Moddys experience even better. It's our way of making sure every unboxing is exciting and special for you.