The Seiko 8123-7180 is a watch model based on the 8123 movement.
Parts List
| 280WA0GN00 | crystal |
| 45E36NS1 | crown |
| 45E36N01 | crown |
| FH2980B01 | case back gasket - case back gasket |
| 0A0150B0A | others - crown and stem gasket |
Caliber 8123
Seiko 8123-7180 Watch Guide