The Seiko 1230-5009 is a watch model based on the 1230 movement.
Parts List
| ESDN41SN00 | crystal |
| 25N01DA6 | crown |
| 25N01DJ6 | crown |
| 0H1600B01 | case back gasket - case back gasket |
| DZ0040B01 | others - crown and stem gasket |
Caliber 1230
Seiko 1230-5009 Watch Guide