The rugged design of the Khaki ETO combined with its unique functionality offers watch wearers style and innovation. In the aviation world, "ETO" stands for "Estimated Time Over." By turning the watch´s bezel to mark the pilot´s travel speed, desired arrival time and traveling distance, the Khaki ETO makes vital calculations to allow the pilot to plan every detail of the journey ahead, and ensure that he/she arrives at his/her destination on time, every time.