The Seiko 1220-0100 is a watch model based on the 1220 movement.
Parts List
| 195W79SK01 | crystal |
| 22M21DA4 | crown |
| 0F150BAA5 | case back gasket - case back gasket |
| 0F165BAA5 | case back gasket - case back gasket |
| 86564370 | crystal gasket |
| TB04A | band - metal band |
| TB05A | band - metal band |
| 08L13JGH | others - hour hand |
| 0351117 | others - winding stem |
| 81181459 | others - bracelet fixing pipe |
| 81606899 | others - bracelet fixing pin |
| 1220010076A | others - case |
| 122001007XA | others - case |
| 12200710XS19 | others - dial |
| 12200720XG19 | others - dial |
| 122010 | others - machine code |
| 82341071 | others - bezel |
| 82341076 | others - bezel |
| 82831930 | others - case ring |
| DZ0040B01 | others - crown and stem gasket |
| 08L13JHM | others - minute hand |
| 08L13XAH | others - hour hand |
| 08L13XCM | others - minute hand |
Caliber 1220
