OmologatoYamaha Toprak World Championship ChronographREF NUMBER: TOP1OmologatoYamaha Toprak World Championship ChronographREF NUMBER: TOP1ModelYamaha Toprak World Championship ChronographCase Diameter42 mmDial Numeral-MovementQuartzPower Reserve-Manufacture Year-Dial MaterialBlack MatteDial Movement CaliberOmologato QuartzCase MaterialStainless SteelWater Resistance100 m