The Seiko 3Y09-0B40 is a watch model based on the 3Y09 movement.
Parts List
| 200W24JM | crystal |
| 200W24JM01 | crystal |
| 30MB6NA1 | crown |
| 0A1800B01 | case back gasket |
| EZ0035B0 | case back gasket |
| Z5375S | band |
| Z5375S-LKS | band - link |
| Z5375S-BK7S | clasp - clasp |
| 0351546 | others - winding stem |
| 81180229 | others - bracelet fixing pipe |
| 81604259 | others - bracelet fixing pin |
| 82804020 | others - case ring |
| 0801778 | others - date dial |
| 3Y090B40 | others - case back |
| 3Y090B407E | others - case |
| 3Y090D10XL19 | others - dial |
| 3Y099 | others - machine code |
| EZ0035B01 | others - crown and stem gasket |
| 08TE2NGM | others - minute hand |
| 08TE2NGH | others - hour hand |