The Seiko 1221-5170 is a watch model based on the 1221 movement.
Parts List
| ESGN55SN00 | crystal - crystal (sapphire) |
| 30N59DA6 | crown - crown |
| 0H1850B01 | case back gasket |
| MK59A | band - leather band |
| 06P33DGH | hand - hour hand |
| 06P33DGM | hand - minute hand |
| A130AS | others - push pin (for lb) |
| DZ0040B01 | others - crown and stem gasket |
| 12210300XG14 | others - dial |
| 122110 | others - machine code |
| 122151704FA | others - case |
| 83136070 | others - case ring |
| 06SC19VG | others - second hand |
| 0351117 | others - winding stem |
Caliber 1221
