BulovaBulova Royal Oak REF NUMBER: 4420101BulovaBulova Royal Oak REF NUMBER: 4420101ModelRoyal OakCase Diameter36.0 mmDial NumeralBaton IndicesMovementMechanical AutomaticPower Reserve48 hManufacture Year-Dial MaterialWhite MatteDial Movement CaliberBulovaCase MaterialStainless SteelWater Resistance30.0 m