| Japan Production | U.S. Production | ||
| 1927 | 4200 | 1988 | A6904 |
| 1930 | 6000 | 1989 | A7500 |
| 1935 | 8350 | 1990 | A10200 |
| 1940 | 9600 | 1991 | A21300 |
| 1945 | 12000 | 1992 | A30515 |
| 1950 | 14200 | 1993 | A39267 |
| 1952 | 15000 | 1994 | A49071 |
| 1953 | 16200 | 1995 | A56689 |
| 1954 | 18600 | 1996 | A64000 |
| 1955 | 20590 | 1997 | A74000 |
| 1956 | 21300 | 1998 | A81000 |
| 1957 | 22500 | 1999 | A90000 |
| 1958 | 23200 | 2000 | A96000 |
| 1960 | 26000 | 2001 | A100000 |
| 1961 | 34500 | 2002 | A104000 |
| 1962 | 75760 | 2003 | A111000 |
| 1963 | 85622 | 2004 | A115300 |
| 1964 | 132307 | ||
| 1965 | 163178 | Indonesia Production | |
| 1966 | 203433 | 2003 | F000200 |
| 1967 | 251660 | 2004 | F002200 |
| 1968 | 303686 | 2005 | F004700 |
| 1969 | 369088 | 2006 | F010600 |
| 1970 | 425121 | 2007 | F018700 |
| 1971 | 488834 | 2008 | F030500 |
| 1972 | 558216 | 2009 | F040085 |
| 1973 | 633601 | 2010 | F049000 |
| 1974 | 718768 | 2011 | F057700 |
| 1975 | 785568 | 2012 | F067900 |
| 1976 | 844362 | ||
| 1977 | 904384 | ||
| 1978 | 973490 | ||
| 1979 | 1067130 | ||
| 1980 | 1126366 | ||
| 1981 | 1219355 | ||
| 1982 | 1300000 | ||
| 1983 | 1380000 | ||
| 1984 | 1475000 | ||
| 1985 | 1550000 | ||
| 1986 | 1630500 | ||
| 1987 | 1706250 | ||
| 1988 | 1781250 | ||
| 1989 | 1856250 | ||
| 1990 | 1950000 | ||
| 1991 | 2000000 | ||
| 1992 | 2050000 | ||
| 1993 | 2100000 | ||
| 1994 | 2160743 | ||
| 1995 | 2197503 | ||
| 1996 | 2244232 | ||
| 1997 | 2279943 | ||
| 1998 | 2314043 | ||
| 1999 | 2350000 | ||
| 2000 | 2380000 | ||
| 2001 | 2410000 | ||
| 2002 | 2430000 | ||
| 2003 | 2466000 | ||
| 2004 | 2495000 | ||
| 2005 | 2518000 | ||
| 2006 | 2543000 | ||
| 2007 | 2566000 | ||
Information Source: http://www.kawaius-tsd.com/pages/serial_manudate.html
Yamaha Serial Number
These were Japan made pianos and mostly sold as used condition in Malaysia. For Malaysian buyers who owned any KX models (KX-10, KX-15, KX-21), kindly contact authorised Kawai Technical Support Hotline to verify the production date.