The Seiko 1220-542H is a watch model based on the 1220 movement.
Parts List
| REFN17HR01 | crystal |
| REFN17HR | crystal |
| 25N31DA1 | crown |
| 0F220NA11 | case back gasket - case back gasket |
| 0F220NA1 | case back gasket |
| M1026G | band |
| 0351117 | others - winding stem |
| DZ0040B01 | others - crown and stem gasket |
| 08L01DGH | others - hour hand |
| 08L01DGM | others - minute hand |
| REFN17HR01 | crystal |
| REFN17HR | crystal |
| 25N31DA1 | crown |
| 0F220NA11 | case back gasket - case back gasket |
| 0F220NA1 | case back gasket |
| M1026G | band |
| 0351117 | others - winding stem |
| DZ0040B01 | others - crown and stem gasket |
| 08L01DGH | others - hour hand |
| 08L01DGM | others - minute hand |
Caliber 1220
