The Seiko 1220-5180 is a watch model based on the 1220 movement.
Parts List
| 30N99NS1 | crown |
| 0F160NA11 | case back gasket |
| DK52B | band - band |
| 1DH042A1BNG | others - hour hand |
| 06R01DGM | others - minute hand |
| 0351117 | others - winding stem |
| 12200350XS14 | others - dial |
| 122010 | others - machine code |
| 12205180F8 | others - case |
| A110AS | others - push pin |
| DZ0040B01 | others - crown and stem gasket |
Caliber 1220
