The updated Vacheron Constantin Harmony Chronograph with monopusher is a reincarnation of the 1928 Chronograph
Movement Vacheron Constantin 3300 | Hand-wound | Diameter: 32.80 mm / 14½ lignes | Thickness: 6.70 mm | Frequency: 21,600 vph (3 Hz) | Jewels: 35 | Parts: 252 | Certification: Hallmark of Geneva | Hours, minutes, small seconds, chronograph, power-reserve indicator | Power-reserve: 65 hours
Movement Vacheron Constantin 3300