The Seiko 3Y09-0C0A is a watch model based on the 3Y09 movement.
Parts List
| 195W48HK01 | crystal |
| 195W48HK | crystal |
| 38M08NA2 | crown |
| 0A2000N0A | case back gasket |
| EA0040B0 | case back gasket |
| 86581840 | crystal gasket |
| 89911029 | band - bracelet fixing pin |
| WEJ23G | band |
| 82804820 | others - case ring |
| 0801812 | others - date dial |
| 3Y090C0A | others - case back |
| 3Y090C0ARH | others - case |
| 3Y090E80X914 | others - dial |
| 3Y099 | others - machine code |
| 89911041 | others - shell cover unit |
| B090BS | others - push pin |
| 0351546 | others - winding stem |
| EA0040B0A | others - crown and stem gasket |
| 08TK4AAM | others - minute hand |
| 08TG6ALH | others - hour hand |