The "Junkers J1" Exclusive Edition is devoted to an plane that took to your skies just once and nevertheless represented a revolution. Strictly limited to 1915 parts. It includes a stainless-steel situation that has a scratch-resistant sapphire crystal. It’s a hand-winding mechanical movement with forty two hours of electrical power. https://www.watchesworld.com/germanys-top-10-favourite-luxury-watches/