The Seiko 1230-5159 is a watch model based on the 1230 movement.
Parts List
| RE6N67SE10 | crystal |
| 25N07DA1 | crown |
| 25N07NS1 | crown |
| 0H1800B01 | case back gasket - case back gasket |
| DZ0040B01 | others - crown and stem gasket |
Caliber 1230
Seiko 1230-5159 Watch Guide