The Seiko 1220-5090 is a watch model based on the 1220 movement.
Parts List
| REAN49SE10 | crystal |
| 27N01DH5 | crown - crown |
| 0F185NA11 | case back gasket - case back gasket |
| MK17B | band - leather band |
| DZ0040B01 | others - crown and stem gasket |
| 06R09D3H | others - hour hand |
| 0351117 | others - winding stem |
| 82713670 | others - case ring |
| 12200260XG14 | others - dial |
| 122010 | others - machine code |
| 12205090EAA | others - case |
| A140AS | others - push pin |
| 07R03DGM | others - minute hand |
| 2CA065A1BDG | others - minute hand |
Caliber 1220
