The Seiko 6309-5490 is a watch model based on the 6309 movement.
Parts List
| BA1W50GN00 | crystal |
| 40M58NA1 | crown - crown |
| 40M58NS1 | crown - crown |
| FH2980B01 | case back gasket - case back gasket |
| FH2980B | case back gasket |
| 86176790 | crystal gasket - plastic gasket for crystal |
| C186G | band - metal band |
| C186G-LKG | band - link |
| C186G-PB1 | clasp - parts for buckle/clasp |
| C186G-BK1G | clasp - clasp |
| 09B70LGH | hand - hour hand |
| 09B70LGM | hand - minute hand |
| 6309549075 | others - case |
| 63095510XG14 | others - dial |
| 63095511XG14 | others - dial |
| 63099 | others - machine code |
| 83020405 | others - dial ring (upper) |
| 83022822 | others - dial ring (lower) |
| 0354601 | others - winding stem |
| A180CS | others - push pin |
| 82707380 | others - case ring |
| 0801601 | others - date dial |
| 0884678 | others - holding ring for dial |
| DJ0060B | others - crown gasket |
| DJ0060B01 | others - crown gasket |
| 13SB11NG | others - second hand |
Caliber 6309
