The Patek Philippe Ref. 1518A in stainless steel from 1943 is the was expensive watch in the world
Movement Patek Philippe 13”’130 Q | Movement number: 863’193 (for this piece) | Hand-wound | Diameter: 29.32 mm / 13 lignes | Frequency: 18,000 vph (2.5 Hz) | Jewels: 23 | Hours, minutes, small seconds, chronograph, perpetual calendar (date, day, month), moon phase | Power-reserve: unknown
Movement Patek Philippe 13”’130 Q