| Movement | Quartz |
| Case material | Plastic |
| Crystal material | Mineral K1 |
| Weight | 93 g |
| Waterproof | 200 m |
See more products brands
Movement
Quartz
Case material
Plastic
Crystal material
Mineral K1
Weight
93 g
Waterproof
200 m
The Luminox Navy SEAL 3500 Series SEMPER-FORTIS Limited Edition XS.3515.N watchis part of the Navy SEAL 3500 Series collection, which was created through a collaboration between Luminox and the U.S. Navy SEALs. Given this, you can count on high water resistance and durable construction.
The case of the Luminox XS.3515.N is made from a special carbon-fiber-based material called CARBONOX™, which ensures the necessary durability as well as another desirable feature—lightweight construction. The watch, complete with its carbon bracelet, weighs only 93 grams. With water resistance up to 200 meters, the watch can even be used for deep-sea diving. The unidirectional rotating bezel with a tritium marker will undoubtedly come in handy for these purposes. A date window, positioned at the traditional 3 o’clock position, adds practical functionality. The watch’s greatest advantage, however, is its tritium luminescence, which ensures readability in the dark—without any external light source—for up to 25 years.
The inscription on the dial , “Semper Fortis,” is the Latin phrase for “Always Strong” —a phrase long associated with the U.S. Navy and the perseverance, discipline, and determination expected of those who serve. Between the 8 and 11 o’clock positions, the words “SEMPER-FORTIS” are coated with a layer of Super-LumiNova®, while the English translation “EVER STRONG” appears directly below them in red. In daylight, the translation subtly hints at the inspiration behind the watch. As the ambient light fades, the luminous Latin inscription gradually comes to the forefront, revealing a message that reflects the resilience of the elite units this watch represents.
This is a limited edition of 775 pieces worldwide. This number pays homage to the year 1775, when the U.S. Navy was founded.
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Print size patterns
(For printing set - Scale: Default)
| Brand | Luminox |
| Gender | Male |
| Style | Dive, Military, Sports |
| Origin | Swiss |
| Guarantee | 5 years |
| Waterproof | 200 m |
| Weight | 93 g |
| Movement | Quartz |
| Caliber | Ronda 515 |
| Movement accuracy in seconds | ±15 sec. / month |
| Case size | 45 mm |
| Case height | 14 mm |
| Case shape | Round |
| Case material | Carbon |
| Case color | Black |
| Crystal material | Mineral K1 |
| Dial | Analog |
| Dial color | Black |
| Strap material | Carbon |
Buckle ![]() |
Tang Buckle |
| Strap Width | 24 mm |
| Strap color | Black |
Quick release system ![]() |
no |
| Date | Yes |
Rotating bezel ![]() |
Unidirectional rotating |
| Functions | Date, Swivel bezel, Screw-on crown, Trigalight |
| Battery | Yes |
Screw-on Crown ![]() |
Yes |
Luminescence ![]() |
LLT |
We guarantee the accuracy of the data. Did you find a mistake? Let us know and get 200 CZK on Watch purchase.
Guarantor: Kateřina Žváček
Jiří Štencek
+420 252 252 306
Mo-Th 9-19
Fr-Sa 9-16
info@helveti.eu
The product is included in categories
Men's Swiss watch Men’s watches Luminox Sea Sea Men's Quartz watches Men's sports watches Men's watches with date Men's black watches Men's watches Limited edition Men's watches novelties Men's watches over 400 EUR Men's dive Watches Men's plastic watch Men's military watch Men's watch with mineral glass Luminox Men’s Watches Luminox
The name Luminox was created by combining the words Lumi (Latin for light) and Nox (Latin for night). The brand was founded in 1989 and offers a watch with a unique LLT technology (self-powered lighting - tritium tubes), thanks to which you can see the Luminox watch in all conditions. The luminescence lifespan is up to 25 years and is identical to the Traser trigalight. The "Swiss made" label guarantees quality.
The Luminox watch became known for its cooperation with the Navy SEAL, when it supplied the US Navy with a specially developed watch for night missions. This was followed by orders from the US Air Force (Nighthawk Fighter Jet), elite forces and Lockheed Martin. Today, Luminox is synonymous with reliable, durable watches equipped with cutting-edge technologies.
Helveti.eu is an authorized dealer and specialist of the Luminox brand.
Manufacturer information: Mondaine Watch Ltd., Etzelstrasse 27, 8808 Pfäffikon/SZ, Switzerland / webshop-uk@luminox.com
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1 → We check, clean and set
We will check the functionality, set time, date and clean the watch carefully.
2 → We will carefully pack the watch
So that the watch does not have a chance to be damaged. We use special vacuum pads.
3 → We insure the watch against damage from the carrier
To be sure, we will insure the watch against breakage, so there is nothing to fear.
With each watch, you will receive a gift of your choice from us. Gifts are graduated according to the value of the order.
From €0 = Cleaning cloth, with which you can polish the glass of a watch.
From €100 = Stroke shortener, you can adjust the watch bracelet to your hand.
From €150 = Helveti canvas bag.
From €150 = Credit card knife.
From €170 = Donut watch case.
From €400 = Parker Jotter.
From €600 = knife Mikov 100-NH-2A blue.
From €1000 = Victorinox Waiter knife with 9 functions.
From €1400 = Watchroll for 2pcs.
From €1650 = Helveti leather watch roll.
From €2000 = Leather travel case.
From €2800 = Leatherman REV.
From €4000 = Wooden watch box Helveti.
From €6000 = Watch winder Helveti black.
And on top of that, a 5-year warranty (You can find the terms of the extended warranty here) and free shipping.
You can view the gifts here: