ZenithEl Primero Chronomaster 42 Aluminium / Black / Rubber StrapREF NUMBER: 24.2041.400/21.R576ZenithEl Primero Chronomaster 42 Aluminium / Black / Rubber StrapREF NUMBER: 24.2041.400/21.R576ModelEl PrimeroCase Diameter42.00 mmDial NumeralStick / DotMovementMechanical AutomaticPower Reserve50 hManufacture Year-Dial MaterialBlack SunburstDial Movement CaliberZenith El Primero 400BCase MaterialAluminiumWater Resistance100.00 m