SEIKO MOD SUBMARINER CLASSIC BLACK MEN'S WATCH

Name: SEIKO MOD SUBMARINER CLASSIC BLACK MEN'S WATCH
Brand: PREMIUM TIME
Price: 179.99 GBP
Availability: InStock

£179.99 £360

1 Year warranty included

Leather watch box gift + tool kit

Free express worldwide shipping

Payment in 4 installments with PayPal

Upgrade to a Premium Rotor ~~£25.00~~ £19.99 GBP

Handcrafted and assembled by our in-house watch experts, the Seiko Submariner Mod is driven by the reliable NH35 automatic movement. Inspired by the iconic Submariner design, this mod features the classic unidirectional rotating bezel, bold luminous markers, and a robust stainless steel case, making it perfect for underwater adventures and daily wear. Blending Seiko's precision with the timeless appeal of the Submariner, this watch is the ultimate companion for those who appreciate both style and functionality.

Specifications & Material

Diameter: 40mm
Movement: Seiko NH35 Automatic
Movement's Country Origin: Japan
Case Thickness: 13mm
Case Material: 904L Stainless Steel
Crystal Material: Sapphire Crystal
Water Resistance: 3ATM
Luminous Hands: Yes
Opened Caseback: No
1 Year Warranty*

BUY 2 OR MORE WATCHES
And get a 20% off your order

Luxury Unboxed

Elevate Your Experience

At Seikora, 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 Premium Time experience even better. It's our way of making sure every unboxing is exciting and special for you.

Need Help?

Frequently Asked Questions

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.

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.

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 include your specific requirements in a message when placing your order.

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 through the Chat on our website to discuss your options with one of our watchmakers.

CUSTOMER SATISFACTION ABOVE ALL!

Excellent

4.6

/ 5

based on 122 reviews

Incredible quality, beyond expectations!

I had some doubts at first about a Seiko mod, but honestly, I’m blown away. The finish is flawless, the materials feel premium, and the weight on the wrist gives a solid, high-end feel. You can tell this is serious craftsmanship—nothing like cheap watches. Super happy with my purchase! I had some doubts at first about a Seiko mod, but honestly, I’m blown away. The finish is flawless, the... I had some doubts at first about a Seiko mod, but honestly, I’m blown away. The finish is flawless, the materials feel premium, and the weight on the wrist gives a solid, high-end feel. You can tell this is serious craftsmanship—nothing like cheap watches. Super happy with my purchase!

James W.

Super fast shipping, arrived in under a week!

I expected to wait weeks like with other websites, but my watch arrived in 5 days! The tracking was detailed at every step, and the packaging was solid, keeping the watch perfectly protected. Really professional service. I expected to wait weeks like with other websites, but my watch arrived in 5 days! The tracking was detailed... I expected to wait weeks like with other websites, but my watch arrived in 5 days! The tracking was detailed at every step, and the packaging was solid, keeping the watch perfectly protected. Really professional service.

Daniel M.

Seiko movement—rock solid and precise!

I own several watches, and the Seiko NH35 movement is a no-brainer. Reliable, accurate, and easy to maintain. After several days of use, I can confirm it keeps excellent time. Definitely a smart buy for anyone looking for a solid automatic movement without breaking the bank. I own several watches, and the Seiko NH35 movement is a no-brainer. Reliable, accurate, and easy to maintain. After several... I own several watches, and the Seiko NH35 movement is a no-brainer. Reliable, accurate, and easy to maintain. After several days of use, I can confirm it keeps excellent time. Definitely a smart buy for anyone looking for a solid automatic movement without breaking the bank.

Michael S.

I was worried about water resistance… Tested & approved!

This was my biggest concern before ordering. I wasn’t sure if a Seiko mod would hold up in water or if I had to be extra careful. Took it in the shower, went swimming—no issues at all! No fogging under the glass, no leaks, nothing. Super reassuring! This was my biggest concern before ordering. I wasn’t sure if a Seiko mod would hold up in water or... This was my biggest concern before ordering. I wasn’t sure if a Seiko mod would hold up in water or if I had to be extra careful. Took it in the shower, went swimming—no issues at all! No fogging under the glass, no leaks, nothing. Super reassuring!

Chris D.

Best customer service I’ve experienced!

I had a question before buying, and they replied in less than 5 minutes. It’s rare to find such responsive and knowledgeable customer support. Even after my purchase, they followed up to check if everything was good. Way better than those companies that just ignore you. I had a question before buying, and they replied in less than 5 minutes. It’s rare to find such responsive... I had a question before buying, and they replied in less than 5 minutes. It’s rare to find such responsive and knowledgeable customer support. Even after my purchase, they followed up to check if everything was good. Way better than those companies that just ignore you.

Robert L.

A Seiko mod that feels like a high-end watch

I debated between a regular Seiko and a modded one. Honestly, this model exceeded all my expectations. The dial is stunning, the bracelet is top quality, and the customization gives it a truly unique look. You can tell every detail was carefully thought out. I debated between a regular Seiko and a modded one. Honestly, this model exceeded all my expectations. The dial is... I debated between a regular Seiko and a modded one. Honestly, this model exceeded all my expectations. The dial is stunning, the bracelet is top quality, and the customization gives it a truly unique look. You can tell every detail was carefully thought out.

Andrew K.

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OUR STORY

In a small London workshop, two watch enthusiasts, Alex Carter and Michael Hayes, set out to create something different. Passionate about horology and engineering, they were frustrated by the lack of affordable, high-quality timepieces that truly reflected individuality.

They discovered Seiko mods, a world where craftsmanship meets customization. What started as a personal project soon became Seikora—a brand dedicated to creating exceptional Seiko mods with authentic movements, premium materials, and a level of detail that rivals high-end watches.

Each timepiece is meticulously assembled to ensure durability, precision, and timeless style. Whether it’s the trusted NH35 movement, the scratch-resistant sapphire crystal, or the carefully curated designs, every watch is built to stand out and last.

At Seikora, we don’t just make watches. We craft timepieces that tell your story.