Patek PhilippePerpetual Calendar Chronograph 2499REF NUMBER: 2499J Series 3Patek PhilippePerpetual Calendar Chronograph 2499REF NUMBER: 2499J Series 3ModelGrand ComplicationsCase Diameter37.60 mmDial NumeralStick / DotMovementMechanical HandwoundPower Reserve42 hManufacture Year1960Dial MaterialSilverDial Movement CaliberPatek Philippe 13'''130 QCase MaterialYellow GoldWater Resistance0.00 m