Matching the F117 - Nighthawk™, the model 6441 gets an unobtrusive look through a combination of the CARBONOX™+ 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. Replacement Strap FEX.6420.20B.1.K
