The Seiko 3Y09-0B50 is a watch model based on the 3Y09 movement.
Parts List
| 200W24JN01 | crystal |
| 200W24JN | crystal |
| 30MB6NA1 | crown |
| 0A1800B01 | case back gasket |
| EZ0035B0 | case back gasket |
| Z5375C-LKG | band - link |
| Z5375C | band |
| Z5375G-LKG | band - link |
| Z5375G | band |
| Z5375L 60.--bicolor | band |
| Z5375G-BK7G | clasp - clasp |
| Z5375C-BK7G | clasp - clasp |
| 08TE2AGH | others - hour hand |
| 08T08NAH | others - hour hand |
| 08T08NAM | others - minute hand |
| 0351546 | others - winding stem |
| 81180229 | others - bracelet fixing pipe |
| 81182699 | others - bracelet fixing pipe |
| 81607199 | others - bracelet fixing pin |
| 82804020 | others - case ring |
| 0801778 | others - date dial |
| 0801812 | others - date dial |
| 3Y090B50 | others - case back |
| 3Y090B5075 | others - case |
| 3Y090B507N | others - case |
| 3Y090D10XS19 | others - dial |
| 3Y090D20XS14 | others - dial |
| 3Y090D30XG14 | others - dial |
| 3Y090D30XS14 | others - dial |
| 3Y090F00XS19 | others - dial |
| 3Y099 | others - machine code |
| EZ0035B01 | others - crown and stem gasket |
| 08TE0AGH | others - hour hand |
| 08TE0AGM | others - minute hand |
| 07TB8AGH | others - hour hand |
| 08TE2AGM | others - minute hand |
| 07TB8AGM | others - minute hand |