L511

Automatic movement with small seconds indicator and power reserve indicator. Diameter: 26.20 mm (11.5’’’) Frequency: 28,800 vibrations per hour (4 Hz) No. of jewels: 36 Power reserve: over 42 hours Variable-inertia balance with four gold setting screws Escapement wheel in silicon with StruTech blank Exclusive "grainé-champlevé" décor on bridges, hand-chamfered, with raised mirror-polished markings 22 ct gold oscillating weight Officially chronometer-certified by the Observatoire National de Besançon Stamped with the "Viper's Head"