The Seiko 1221-5350 is a watch model based on the 1221 movement.
Parts List
| ESLN55SN00 | crystal - crystal (sapphire) |
| 32N13DA5 | crown - crown |
| 0H1700B01 | case back gasket - bezel gasket |
| PK06B | band - leather band |
| 08S15CHH | hand - hour hand |
| 08S15CHM | hand - minute hand |
| 08SS05VG | hand - second hand |
| A120BS | others - push pin (for lb) |
| DZ0040B01 | others - crown and stem gasket |
| 0351117 | others - winding stem |
| 12210530XG18 | others - dial |
| 122110 | others - machine code |
| 122153504LA | others - case |
| 82703470 | others - case ring |
Caliber 1221
