The Marathon #CSAR wasn’t designed to be admired, it was engineered to perform. Developed for search-and-rescue pilots, this automatic chronograph is dive rated to 300m, powered by the Valjoux 7750, and illuminated by tritium gas tubes and #MaraGlo lume so it’s readable in total darkness, at extreme altitude, in constant motion. Nothing decorative. Nothing accidental. 100% #toolwatch.