The Extra-fort Roue à Colonnes Retour en Vol by Eberhard & Co. exemplifies the Swiss Maison’s unique craftsmanship, blending historic charm with modern innovation. It combines two key features of classic chronographs: the column wheel and the fly-back complication. The column wheel, visible through the sapphire glass caseback, is the heart of the chronograph, while the fly-back complication, known as retour en vol, allows for quick resetting and restarting of the chronograph with a single push, originally designed for pilots in the 1930s. The dial showcases frappé finishing with circular and azurée counters, available in various color combinations. Strap options include classic alligator leather or a steel bracelet, depending on the dial version.