Endurance 1917 Series: built to endure the unendurable. As his leadership, courage and optimism continue to captivate explorers around the world, BALL Watch Company is proud to introduce its second series inspired by the legacy of Sir Ernest Shackletons Trans-Antarctic Expedition. The Endurance series is presented in a robust 40mm version that rounds out the series with three-hand practicality. The timepiece is powered by COSC certified movement, protected by the BALLs patented Amortiser® anti-shock system and enhanced by cold temperature resistance oil to ensure ultimate timekeeping in sub-zero temperatures. This chronometer is shining with micro gas tube luminosity. Sometimes there is no escaping the darkness. The self-powered H3 micro gas tubes provide extreme readability and trusted reliability in all pursuits. For exceptional anti-magnetic protection, a mu-metal shield has been added to the piece. Mu-metal is an alloy of nickel, iron, copper and molybdenum with very high magneti