The Vacheron Constantin Les Cabinotiers Symphonia Grande Sonnerie 1860 is the first grand sonnerie of Vacheron
Movement Vacheron Constantin 1860 | Hand-wound | Diameter: 37 mm / 16 lignes | Thickness: 9.1 mm | Frequency: 21,600 vph (3 Hz) | Jewels: 74 | Parts: 727 | Two barrels | Hours, minutes, small seconds, grande sonnerie, petite sonnerie, minute repeater, power-reserve indicator, strike work power-reserve indicator | Power-reserve: 72 hours (movement) / 20 hours (strike work)
Movement Vacheron Constantin 1860