The Seiko 1220-5150 is a watch model based on the 1220 movement.
Parts List
| GB23A | band - band |
| 0351117 | others - winding stem |
| 81606439 | others - bracelet fixing pin |
| 12200320XN14 | others - dial |
| 122010 | others - machine code |
| 1220515011 | others - case |
Caliber 1220
