RolexGMT-Master II / GRNRREF NUMBER: 126713GRNRRolexGMT-Master II / GRNRREF NUMBER: 126713GRNRModelGMT-MasterCase Diameter40.0 mmDial NumeralNo NumeralsMovementMechanical AutomaticPower Reserve70 hManufacture Year-Dial MaterialBlackDial Movement CaliberRolex 3285Case MaterialStainless Steel, Yellow GoldWater Resistance0.0 m