The Seiko 6309-8240 is a watch model based on the 6309 movement.
Parts List
| 300WC2GN00 | crystal - crystal |
| 300WC2GN | crystal |
| 40M58NA1 | crown - crown |
| 40M58NS | crown |
| 40M58NS1 | crown - crown |
| FH2980B | case back gasket |
| FH2980B01 | case back gasket - case back gasket |
| 86179290 | crystal gasket - plastic gasket for crystal |
| Z368J | band - metal band |
| Z368S | band - metal band |
| 11BC0ZGH | hand - hour hand |
| 11BC0ZGM | hand - minute hand |
| 6309824061A | others - case |
| 6309861L08BM | others - dial |
| 6309861M08BM | others - dial |
| 6309861N08BM | others - dial |
| 63099 | others - machine code |
| A190CS | others - push pin |
| 0354601 | others - winding stem |
| 0801602 | others - date dial |
| 0884931 | others - holding ring for dial |
| DJ0060B | others - crown gasket |
| DJ0060B01 | others - crown gasket |
| 13SB11NG | others - second hand |
Caliber 6309
