The Seiko 1221-5930 is a watch model based on the 1221 movement.
Parts List
| K00W63JN01 | crystal - crystal (inorganic) |
| 30M57NA1 | crown - crown |
| AC004BA11 | case back gasket - crown and stem gasket |
| 0F140BAA3 | case back gasket - case back gasket |
| ZZ23A | band - metal band |
| ZZ24A | band - metal band |
| 05P27NGH | hand - hour hand |
| 2AC052A1BNG | others - minute hand |
| 3BA075F1BNG | others - second hand |
| 05P19NGM | others - minute hand |
| 1AC032A1BNG | others - hour hand |
| 81606439 | others - bracelet fixing pin |
| 81182699 | others - bracelet fixing pipe |
| 81609399 | others - bracelet fixing pin |
| 0351117 | others - winding stem |
| 122110 | others - machine code |
| 12211450XS14 | others - dial |
| 12211450XS24 | others - dial |
| 1221593075 | others - case |
| 122159307E | others - case |
| 82831290 | others - case ring |
| 05SC05NG | others - second hand |
Caliber 1221
