The Seiko 6309-5520 is a watch model based on the 6309 movement.
Parts List
| ES1W84GN00 | crystal - crystal (inorganic) |
| 40M58NA1 | crown - crown |
| 40M58NS1 | crown - crown |
| FH2980B | case back gasket |
| FH2980B01 | case back gasket - case back gasket |
| 86176750 | crystal gasket - plastic gasket for crystal |
| C187S | band - metal band |
| 11BB6MSH | hand - hour hand |
| 11BB6MSM | hand - minute hand |
| 6309547LXS13 | others - dial |
| 6309547MXS13 | others - dial |
| 6309552061 | others - case |
| 63099 | others - machine code |
| 83050852 | others - dial ring |
| A190CS | others - push pin |
| 0354601 | others - winding stem |
| 0801601 | others - date dial |
| 0884931 | others - holding ring for dial |
| DJ0060B01 | others - crown gasket |
| DJ0060B | others - crown gasket |
| 13SB11NS | others - second hand |
Caliber 6309
