• A silver-toned Seiko Mod Explorer watch with a black dial and stainless steel bracelet.
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Seikojust Mod - Explorer Black

Seikojust Mod - Explorer Black

£235.00 GBP
£249.99 GBP £235.00 GBP
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Case Size (mm)
Bracelet
Case Back
5 Star Rating

TrustScore 5.0 | 140+ reviews

SeikoJust – Explorer Black (36mm / 40mm)

Inspired by the iconic Datejust design and powered by a prestigious automatic movement, the SeikoJust Explorer Black delivers a sleek, minimalist twist on a timeless classic. With a clean black dial and bold numeral markers, this 36mm or 40mm build is perfect for those who value understated elegance with everyday utility.

Each watch is carefully hand-assembled by experts using premium materials for lasting quality and performance.

Specifications:

  • Case Diameter: 36mm or 40mm (excluding crown)
  • Movement: Automatic
  • Case Thickness: 12mm
  • Crystal: Sapphire – anti-scratch with anti-reflective treatment
  • Lume: Yes
  • Case Material: 904L stainless steel
  • Crown: Screw-down
  • Bracelet: 904L polished stainless steel with secure clasp
  • Lug Width: 20mm
  • Wrist Size: Adjustable from 14.5cm to 22cm
  • Case Back Options: Crystal (transparent) or solid steel
  • Water Resistance: 3 ATM (splash resistant)

Modern and versatile, the Explorer Black SeikoJust is built for daily wear — with clean styling that pairs effortlessly with any look.

Build Time

Please allow up to 12 business days for our experts to professionally assemble your watch. In some cases assembly times may extend up to 21 working days due to high demand or holiday closure. For an accurate timeline, please get in touch.

Shipping Time

Depending on your chosen delivery method, domestic orders can be shipped using an express next-day delivery service once assembly is complete. For international orders, please refer to our shipping policy or contact us for further information.

Quality Guarantee

We take great pride in our craftsmanship and guarantee that our watches are made with the highest quality standards. Our 5 star reviews speak for themselves!

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Quality Guarantee

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1K+ Happy Clients

We have exceeded over 1,000 of our clients' expectations by delivering a mod like no other. Fast, reliable and exceptionally crafted by our dedicated watchmakers.

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Quickest Build Time

With an estimated build time of just 3 to 7 days, we proudly offer some of the fastest turnaround times in the industry—certain models may even arrive at your doorstep as soon as the next day.

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Watch Box and Tool Included

Our watches come in a watch box equipped with a tool so that you can accordingly adjust your watch strap.

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Best Price Guarantee

With the high quality of our watches and the calibre of aftermarket components we use, we are unquestionably the most competitive Seiko mod company, offering exceptional affordability.

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 inflated prices or counterfeit products, and by always using the best materials, such as sapphire crystal or ceramic bezels.

How can I adjust the strap size?

We include (for free) a complimentary precision driver to help you adjust the strap properly.

Can I design my own watch?

Absolutely. You can select your case, dial, hands, bracelet and more. Over 100+ combinations available. No two watches are the same.

If you want to customise your watch, please visit our live configurator by clicking here.

Customer Reviews

Based on 5 reviews
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M
Michael
Amazing homage to the 36mm Explorer

Amazing homage to the 36mm Explorer. Build quality is excellent as I’ve come to expect from David and his team. Minor issue with some transit related damage was sorted and the watch replaced within a week with a perfect watch

P
President
Class

A well crafted timepiece with a sleek 36mm stainless steel case and reliable automatic movement. I opted for the black leather strap, which is high quality, comfortable, and subtly stylish. Feels great on the wrist definitely will be buying another one soon!

O
Oliver
automatic movement is great

heavy and automatic glide is great

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P
Patrick
Beautiful

thank you this watch is beautiful

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J
Jamie
Very impressive!

I gotta say this is an impressive watch. The quality of it and the details are spot on, the glide is perfect and the lume on the dial is insane. The strap is beautifully polished and everything else is amazing. I will defo recommend to friends and family. 5/5 stars from me.

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