Faithful to the DNA of the ‘Maison’ nestled in Sainte Croix in the Swiss Jura mountains, the DB28 Steel Wheels Sapphire Tourbillon ably perpetuates the heritage of its predecessors: perfect balance, contemporary and bold aesthetics at the service of exceptional mechanics. The first DB28 was introduced back in 2011 which also immediately won them an award at the Grand Prix d’Horlogerie de Genève. The DB28 Steel Wheels was conceived with a remarkable focus on ergonomics, finishing, and raw craftsmanship. It features a highly polished grade 5 titanium case in 42.6mm (and 9.3mm in thickness) surrounding a silver openwork dial. Encased within is a manual winding Cal. DB2115V4 features an array of cutting-edge technology - a double self-regulating barrel ensuring an impressive 6-day power reserve, a signature balance spring with a flat terminal curve, a silicon escape-wheel, and a triple parachute shock-absorption system, as well as a titanium balance-wheel with white gold inserts.