Manufacture movement with automatic winding - Calibre Royal
21,600 vibrations/hour (3 Hz), dual direction automatic winding, initial force distribution by a central barrel axis
88-hour power reserve design, dial display with 72-hour guaranteed isochronism
Small seconds at 4 o’clock symmetrical to power reserve
Large accurate moon phase at 6 o’clock
Movement finish: bridges and main plate circular-grained and snailed, with Côtes de Genève
Oscillating weight with sunray finish and rhodium plating, gilt "Fleur de Lys" logo
Large balance with compensating screws in solid gold