Collection: Seiko SKX007 Mods for Sale: the Nextseiko Shop

Searching for Seiko SKX007 mods for sale led us to create Nextseiko, which emerged from my workshop in California, where I've been collecting, modifying and customizing Seiko dive watches for years.

We feature custom hand-built mods for sale using premium components, regulated Seiko movements with hacking and hand-winding capabilities, and offer custom modification services on request. We feature free, fast shipping and a 100% satisfaction guarantee -- free returns of unworn watches in their original packaging with no questions asked. 

While we love the SKX007 case shape for its comfort and durability, we've always felt that some of the components of the watch were a bit lacking in quality and character. We think they're an amazing base to build from. Here are some of the standard upgrades you can expect from Nextseiko:

  • Movement. The stock Seiko SKX007 uses a workhorse 7S26 movement, but it lacks hacking and hand winding functionality. All of our watches, unless otherwise upgraded, include a SII NH35 (date only) or NH36 (day and date) with hacking and hand winding capabilities.
  • Bezel. The stock SKX007 bezel has character, but a simple upgrade to the bezel can change the entire look of the watch. Check out some of our inventory to see what we mean. 
  • Crystal. Seiko loves its Hardlex crystals. But they lack the quality and finish of a real sapphire crystal. NXTSKO watches feature csapphire crystals with anti-reflective coating in a multitude of styles: double domed, flat, top hat and more. If you have something specific in mind, just ask us!
  • Crown. The stock SKX crown is pretty pedestrian, so we finish NXTSKO watches with signed Seiko "S" purist crowns for a nice finishing touch. 
  • Bands. Even higher-end Seiko divers come with a rubber straps that feel too much like plastic to be considered premium. In testing dozens if not more than a hundred straps, we settled on one we absolutely love and know you will to: Seiko's new Prospex Turtle straps are made from supple, high-grade silicone for a comfortable feel on the wrist. We take the unconventional step of pairing these incredible premium straps to all of our creations. 

Of course, you'll find a variety of dials, hands, chapter rings and more across our offerings. Browse around, enjoy and shop with confidence!


16 products
  • Fifty Fathoms by NXTSKO
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    $595.00
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  • Seiko SKX007 Sub Lumed Insert by NXTSKO
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    $495.00
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  • Seiko SKX007 Steel Sub Dual Time by NXTSKO
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    $495.00
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  • Seiko SKX007 Stealth By NXTSKO
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  • Seiko SKX007 No-Date Diver by NXTSKO
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    $395.00
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    $395.00
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  • Seiko SKX007 Gold and Steel Diver
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    $495.00
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  • Gift Card
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  • Seiko SKX007 Dual Time Mod - Red Zero
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    $450.00
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    $450.00
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