Seikonaut - Luxury Black on Rubber - Modern Automatic Watch with Sapphire Crystal

$507.00 Sale Save

Look no further than this stunning black Seiko custom built mod as your next wrist companion. Eye catching and rugged - all distilled into this beautiful timepiece.
Fully custom built featuring an exhibition case back showcasing the legendary Seiko NH35 movement.


- Classic luxury black dial with carved textured lines and a date window
- Robust matching black rubber bracelet with stainless steel clasp
- Premium Sapphire Crystal glass
- Fully automatic and regulated Seiko NH35 movement
- Exhibition case back showcases watch movement
- Versatile and impactful 43.5mm case size and a case thickness of 11.2mm
- Very bright lume for excellent night and low light visibility (check out the video!)
- 5ATM water resistance
- Beautiful lumed hands and applied hour indices

Comes with a beautiful black watch gift box - perfect for yourself, friends, colleagues, or family.

If you have any questions please feel free to message me. Thank you!

All my watches are brand new and built with passion. For my Seiko custom mods, I only use Seiko movements, with Seiko and aftermarket products, to design and craft beautiful time pieces for you.

Follow me on IG @WatchesAndrew!

Thanks for looking and have a great day.

Shipping is free within the United States and Canada. International shipping is at a discounted rate.

All shipments are fully tracked for your convenience and peace of mind.

Love it or your money back! I stand by my watches and I'm always here to help to ensure you have an amazing purchase experience.

All custom builds are covered against workmanship defects for a period of 18 months, from the date of receiving your watch. Although very rare, if I’ve made a mistake, I’ll make sure to make it right.

Customer Reviews

Based on 8 reviews
Nathan Balistreri
Awesome Shop! I'd definitely buy from them...

Awesome Shop! I'd definitely buy from them again.

András Wiegand
The Seikonaut looks great and matches the...

The Seikonaut looks great and matches the description! As I ordered from Europe, Andrew was also helpful before and during the ordering process, providing details about the watch dimensions and updates about the overseas shipping. There are some scam listings for similar Seikonauts on Etsy, but this was not one of them. Extra points for the packaging, as it included a friendly welcome letter and a watch case, too. Some imperfections are visible though: the height of the hour markers are different, and the sapphire glass is higher on one side of the case. Also, one wish for the future: better water-proofing than 30m.

Mario Parisian
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This review has no content.

Cory Corwin
Andrew is a pleasure to work with! Respond...

Andrew is a pleasure to work with! Responds quickly and with great information. Had to return a different one and it was quick and easy! Love this seikonaut, quality band and case, dial is really nice and movement is obviously good! This is my new fav piece to wear. Haven't rotated anything else on my wrist since receiving. Thanks! Looking forward to my next purchase here.

Jan-Patrick Balistreri
This review has no content.

This review has no content.