Luminox, the American watch manufacturer who renown with their always visible technology, has made branded watches for various military groups. Their watches have been worn by SWAT teams, Fighter pilots and Navy seals, all because of their ability to glow in the dark. All their watches use tiny gas lights to make sure its timepieces are visible in any situation.
This always visible technology has been hand assembled in every piece of their watch, making it a more expensive and time-consuming method compares to other forms of luminescence, but the result is lasting. According to the company, their watches can stay luminous 24 hours a day for up to 25 years.
If you want to have this kind of watches, you can consider a watch from Hammacher Schlemmer called SWAT Team Watch, it features the same technology as described in the above. It’s made of solid 316L stainless steel protected a black electroplated PVD finish that withstands the rigors of daily use and provides inconspicuous wear, both the locking, screw-down crown and case back provide water resistance up to 660 feet.
SWAT Team Watch brass dial and face are protected by a reflection- and scratch-resistant sapphire crystal. It’s powered by a battery that provides up to four years of operating time. If you are interested, you can buy it from the Hammacher website for $499.95 each piece, and it’s backed by Hammacher Schlemmer Lifetime Guarantee at no additional charge.