F-35 Lightning II
Like the fifth-generation stealth fighter jets they are named for, the F-35 Lightning II Flight Calculation/Chronograph are amazing pieces of machinery. Each watch features a bidirectional rotating bezel with a black aluminum slide rule ring and a dial ring with tachymetric scale. When used in conjunction with the chronograph, the tachymeter indicates rates of speed-in kilometers, miles, or nautical miles per hour. The slide rule bezel can be used to calculate distances, flight times and fuel consumption. These watches are certain to become Essential Gear for those who need the ability to make quick calculations on the go-or vital aviation calculations when survival depends on it.