The Seiko 1221-5700 is a watch model based on the 1221 movement.
Parts List
| BA3N65JN00 | crystal |
| 32N23NS1 | crown |
| 32N23NA1 | crown |
| 0F160NA11 | case back gasket |
| DT07A | band - metal band |
| DT08A | band - metal band |
| 05S07DGH | hand - hour hand |
| 05S07DGM | hand - minute hand |
| 3BA075F1BNG | others - second hand |
| 0351117 | others - winding stem |
| DA007BA11 | others - crown and stem gasket |
| 81180229 | others - bracelet fixing pipe |
| 81604259 | others - bracelet fixing pin |
| 122110 | others - machine code |
| 12211000XG14 | others - dial |
| 12211000XS14 | others - dial |
| 1221570025 | others - case |
| 122157002E | others - case |
| 82721790 | others - case ring |
| 07SC04NG | others - second hand |
Caliber 1221
