manual winding nickel lever movement 44 jewels mono-metallic compensation balance rotating within a three-arm tourbillon carriage • bright yellow dial applied Arabic numerals subsidiary dials for constant seconds and 30-minute register outer scale calibrated for minutes/chronograph seconds dauphine hands • 18k white gold satin-finished case repeating slide to the band sapphire crystal display back secured by 4 screws • case dial and movement signed • with an 18k white gold Girard-Perregaux folding buckle