Fortis Cosmonauts Spacematic Stealth on Strap


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• Verified Buyer Reviews (2 reviews)
Automatic winding PVD case with date
• Case diameter (mm): 40.0
• Case thickness (mm): 11.6
• Case lug width (mm): 20
• Weight - head only (grams): 71
• Water resistance: 100 meters
• Case back: Solid
• Case metal: Black PVD / DLC steel
• Dial color: Black
• Front crystal: Sapphire
• Movement: Automatic mechanical
• Manufacturer's limited warranty: 2 years
• Warranty service: RGM or Fortis
• Fortis Collections: Cosmonautis
• MPN: 623.18.18
° Earn 1560 WatchPoint Rewards on this purchase
WatchBuys Direct Price: $780.00
Availability: Temporarily Sold Out

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Fortis Cosmonauts Spacematic Stealth on Strap
Fortis Cosmonauts Spacematic Stealth on Strap
Product Details


Fortis didn't officially name the Spacematic line until the 1970's, but its roots go back a decade further to the US Gemini Astronauts, who wore some of the first Spacematic watches on their missions.

The Spacematic collection relies on four core tenets: high functionality, excellent readability, robustness, and ease of use.



The Fortis Spacematic Stealth is housed in a matte black PVD 40 millimeter case, with white accents on the dial. Numerals can be found at 12, 6, and 9.

The numeral at 3 has been omitted to make room for the dual language day/date display - which can be quick-set through the crown.

White minute and hour hands are distinctly defined against the black dial. The hands (as well as numerals and indices) are all coated with SuperLuminova with a green night flow.

An orange seconds hand is impossible to miss with high contrast to the dial.




Important features of this watch include:

  • Applied numerals and indices
  • Black PVD case
  • Green SuperLuminova
  • Day/date display at 3
  • Water resistant to 100 meters

This watch is fitted with a black Fortis Performance strap.

WatchBuys is proud to have been selected as the exclusive North American distributor for Fortis Swiss watches.

When you purchase your new Fortis watch from WatchBuys, you'll not only receive a brand new, factory fresh watch, but also these additional services:


  • All Fortis watches ship directly from our offices in the US to all locations in the US and Canada
  • Two year limited manufacturer's warranty backed by Fortis
  • Fortis watches purchased from WatchBuys may be serviced in the US by RGM, the new official Fortis North American Service Center
  • Our Fortis watches have not been displayed in a retail store or tried on by others
  • Our Fortis watches are the latest production pieces and are all factory fresh, sent directly from the Fortis workshops in Grenchen, Switzerland
  • We're here to answer questions or provide assistance before and after your purchase
  • We visit and meet with Fortis in Switzerland on a regular basis to stay fully updated on all new models and production features
  • WatchBuys offers a comprehensive return policy on all Fortis watches


Because we are the official and authorized North American Fortis distributor, your name and watch serial number will be automatically registered in our database for a genuine Fortis manufacturer's limited two year warranty which we pass through.

Please be aware that most web sites advertising Fortis watches for sale are not authorized Fortis dealers but instead are selling grey market watches.


Such watches may be used, refurbished, very old stock or worse and carry no factory warranty from Fortis.  Further, Fortis has issued recent warnings about fake watches appearing on a number of auction web sites. 


We invite you to review the entire collection of Fortis watches, an important part of Swiss watch history since 1912.



Watch Reviews From Verified Buyers
100% <b>• Verified Buyer Reviews</b>100% • Verified Buyer Reviews (2 reviews)
Rate this watch: Positive Review  Positive Review Negative Review  Negative Review  

Great watch. Super legible. Included strap is awful.

"Great watch. Super legible. Included strap is awful."

Verified Buyer Comments: The Spacematic Stealth looks good on the wrist, keeps accurate time and is super legible. Mine isn't quite COSC-accurate, but it's close. What I like most about this watch is the legibility. It's really easy to read at a glance. The lume is great too and looks awesome at night. I love the quick day/date adjustment. My only complaint is the band. It's simply terrible. It's really fat in the middle with some kind of padding inside, which makes it very difficult to put on and remove. I replaced it with the bespoke white silicone strap that comes on the 2018 version, directly from Fortis. I also tried it with the blacked-out Fortis NATO strap, again directly from Fortis in Switzerland (WatchBuys did not have either strap). I did a ton of research on this watch before buying it, and it seems to be quite rare compared to many of their other models. Maybe other people don't appreciate the minimalist design, but I absolutely love it. I'll be keeping this one for sure. Dealing with Watchbuys ... - more details

Great Watch!

"Great Watch!"

Verified Buyer Comments: Watch arrived quickly and in perfect condition. Order process was smooth and staff were friendly. Watch is keeping very good time (gained 1 minute in about nine days). Had a person ask about the watch who turned out to be a watch collector, which has never happened before-even with my vintage Rolex! Great watch, easy to ready and keeps great time!

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