The Seiko 2P20-520H is a watch model based on the 2P20 movement.
Parts List
| REEN23JR02 | crystal |
| REEN23JR | crystal |
| 32N11NG1 | crown |
| 30M33NH1 | crown |
| 0G2125B0 | case back gasket |
| DZ0040B0 | case back gasket |
| 0G2125B01 | case back gasket - case back gasket |
| BLZ16D | band - leather band |
| 06Y03DGH | hand - hour hand |
| 2P200340XB34 | others - dial |
| 2P20520HE6 | others - case |
| 82733210 | others - case ring |
| A150AS | others - push pin |
| DZ0040B01 | others - crown and stem gasket |
| 06Y03DGM | others - minute hand |
Caliber 2P20
