Housed in a Breguet Gold case, Expérimentale 1 is powered by the manually-wound Calibre 7250. The novelty technically boasts the maison's very first high-frequency (10Hz) tourbillon with a magnetic escapement that delivers constant force to the balance. Innovative 10Hz tourbillon with a constant-force magnetic escapement. The aesthetic is enhanced by the combination of the subtly-pink Breguet Gold and a navy-blue coating. Composed of gold enriched with silver, copper and palladium, Breguet Gold is distinguished by its brilliance, resistance to discolouration and stability over time.