Sierra Amega 6K Tachometer With Hourmeter 57897P Tachometer Amega 6K With Hourmeter | Sierra 57897P Perimeter and thru-dial lighting Amega 6K Tachometer with Hourmeter 0-6000 RPM range 3 in. diameter Amega series Black dial Red graduations White numerals Vivide white pointer staff Scratch resistant curved lens Black, near flush bezel US and metric scales where appropriate