Caliber GP033M0:
  • Mechanical with automatic winding
  • Calibre: 11 ½ ligne
  • Parts: 287
  • Frequency: 28,800 vibrations / hour (4 Hz)
  • Jewels: 44
  • Power reserve: minimum 46 hours
  • Functions: hours, minutes, small seconds, annual calendar, equation of time
  • Balance wheel: variable inertia with gold regulating screws (diameter: 7.18 mm)
  • Main plate: rhodium-plated, circular-grained above and below, diamond-cut facets
  • Barrel: snailing on the cover, sunray-brushing on the underside
  • Gear-train bridge: polished and diamond-cut facets, circular-grained on the underside, drawn sides, diamond-cut recesses, Côtes de Genève and “Girard-Perregaux eagle” engraving
  • Oscillating weight: pink gold, circular Côtes de Genève
  • Gear-train: gilded 2N18 wheels, burnished pivots, circular-grained sides