Suitable for the F-117 Nighthawk receives the model 6441 an unobtrusive look thanks to a combination of the CARBONOXT+ material and the bi-directional rotating bezel. In addition, the watch combines luminous numerals with Super-LumiNova with Luminox Light Technology (LLT), which guarantees ultimate night vision for up to 25 years through the use of tritium tubes. You too can benefit from our many years of experience. We would be happy to advise you personally. As an end user, you are legally obliged to return used batteries. The symbols shown on the batteries have the following meaning: The symbol of the crossed-out wheeled.