Citizen Eco-Drive Power Reserve GMT Pilot 200M BJ7075-02E Men’s Watch
It’s designed to calculate everything that you consider essential on a trip. It helps you to work out distances, ETA and fuel rates and qualifies as a valuable, mathematical tool. With this on your wrist, you don’t have to approach the calculator everytime and that will keep away distractions. The slide rule can perform many other related operations but more than anything, gives you a pleasant presence even if you are not in an aviation club.