The Seiko 6309-8790 is a watch model based on the 6309 movement.
Parts List
| 310T18ANS0 | crystal - crystal |
| 310T18ANG | crystal |
| 310T18ANS | crystal - plastic crystal |
| 40M58NA1 | crown - crown |
| 40M58NS1 | crown - crown |
| FH2980B01 | case back gasket - case back gasket |
| NA21A | band - band |
| 12B60HSH | others - hour hand |
| 12B60HSM | others - minute hand |
| 0801601 | others - date dial |
| 0884931 | others - holding ring for dial |
| 63098980XS17 | others - dial |
| 63099 | others - machine code |
| A190CS | others - push pin |
| 630987907K | others - case |
| 82360462 | others - bezel |
| 0354601 | others - winding stem |
| DJ0060B01 | others - crown gasket |
| 13SB11NS | others - second hand |
Caliber 6309
