Audemars PiguetRoyal Oak Selfwinding 41 Pink Gold / ‘Bleu Nuit’ / 50th AnniversaryREF NUMBER: 15510OR.OO.1320OR.03Audemars PiguetRoyal Oak Selfwinding 41 Pink Gold / ‘Bleu Nuit’ / 50th AnniversaryREF NUMBER: 15510OR.OO.1320OR.03ModelRoyal OakCase Diameter41.0 mmDial NumeralStickMovementMechanical AutomaticPower Reserve70 hManufacture Year-Dial MaterialBlue TapisserieDial Movement CaliberAudemars Piguet 4302Case MaterialPink GoldWater Resistance50.0 m