TudorBlack Bay 58 39mm With Black Dial Leather StrapREF NUMBER: M79030N-0002TudorBlack Bay 58 39mm With Black Dial Leather StrapREF NUMBER: M79030N-0002ModelM79030N-0002Case Diameter39.0 mmDial NumeralNo NumeralsMovementMechanical AutomaticPower Reserve70 hManufacture Year-Dial MaterialBlackDial Movement CaliberManufacture Calibre MT5402 (COSC MT5402Case MaterialStainless SteelWater Resistance200.0 m