Patek PhilippeAnnual Calendar Chronograph 5905 Platinum / BlueREF NUMBER: 5905P-001Patek PhilippeAnnual Calendar Chronograph 5905 Platinum / BlueREF NUMBER: 5905P-001ModelComplicationsCase Diameter42.00 mmDial NumeralStick / DotMovementMechanical AutomaticPower Reserve55 hManufacture Year2015Dial MaterialBlue SunburstDial Movement CaliberPatek Philippe CH 28-520 QA 24HCase MaterialPlatinumWater Resistance30.00 m