新品、純正品。直徑6ｃｍ、BC#/BF#,1988/07~1993/09.30,A~D年改,S,TW,BD#/BG#,1993/05~1998/11.30,A,B,C年改、S,W,BE#/BH#,1997/11~2003/04.30,A~D年改、S,W