TudorBlack Bay One 39 Stainless Steel / BlueREF NUMBER: M79960-0002TudorBlack Bay One 39 Stainless Steel / BlueREF NUMBER: M79960-0002ModelBlack BayCase Diameter39.0 mmDial NumeralStick & DotMovementMechanical AutomaticPower Reserve70 hManufacture Year-Dial MaterialBlueDial Movement CaliberTudor MT5602 (COSC)Case MaterialStainless SteelWater Resistance100.0 m