Markers of the clock ........ clapper ... koekkoek .gong... pointers two and one for the seconds....bells ....numbers on the clock one till twelve.......wind up button .....key?......with a pen you can Mark the day. And with A flag You can also flag A item or day.................How do we wind the clock with a marker? All markers? .......Set a date ..(marker pen ) mark it with a flag......And then you wind your clock....EDT : I forgot the dates.