Welcome to flight training. The Torgoen T21 Flight GMT is a one-of-a-kind timepiece that incorporates a functional E6B analog flight computer. Developed by US naval pilots in the late 1930’s, the E6B is a circular slide rule used during flight planning to calculate fuel burn, wind correction, time en route and other stats. Complete with GMT function, the T21 Flight GMT is the ultimate watch for pilots and aviation enthusiasts alike. Set in a solid stainless steel case and finished with a best-in-class sapphire crystal lens, this 44mm watch is tough, reliable and stylish.