The Seiko 3Y09-0A30 is a watch model based on the 3Y09 movement.
Parts List
| 185W14JM01 | crystal |
| BLACK | crystal |
| 30MB6NA1 | crown |
| 0A1800N01 | case back gasket |
| EZ0035B0 | case back gasket |
| B5499C-LKG | band - link |
| B5499S | band |
| B5499G-LKG | band - link |
| B5499S-LKS | band - link |
| B5499G | band |
| BJJ69G | band |
| B5499C | band |
| B5499G-BK4G | clasp - clasp |
| B5499S-BK4S | clasp - clasp |
| B5499C-BK4G | clasp - clasp |
| 1BB052A0BNG | others - hour hand |
| 2BB075A0BNG | others - minute hand |
| 81180229 | others - bracelet fixing pipe |
| 81604259 | others - bracelet fixing pin |
| 82804020 | others - case ring |
| 0801778 | others - date dial |
| 0801812 | others - date dial |
| 3Y090A30 | others - case back |
| 3Y090A306Y | others - case |
| 3Y090A3075 | others - case |
| 3Y090A3098 | others - case |
| 3Y090B20XG14 | others - dial |
| 3Y090B30XS14 | others - dial |
| 3Y090B40XS14 | others - dial |
| 3Y099 | others - machine code |
| 82912049 | others - case ring |
| BJJ69G-EPG | others - endpiece |
| 0351546 | others - winding stem |
| EZ0035B01 | others - crown and stem gasket |
| 07TA8FBM | others - minute hand |
| 07TA8FBH | others - hour hand |
| 07TA8NAM | others - minute hand |
| 07TA8NAH | others - hour hand |