The Double Rotor model is fitted with the famous, exclusive Perrelet P-181 movement. This calibre is driven by a double rotor, in an entirely unique design which reveals the automatic winding function through the centre of the dial. Despite the extraordinary complexity of its mechanism, which took more than fi ve years to develop, the simplicity of the display (central hour, minute and second hands and date) underlines the quality and individuality of this unique model – a true signature piece for the brand.