The Seiko 2P20-5D90 is a watch model based on the 2P20 movement.
Parts List
| ESGN08JN01 | crystal |
| 30M98NA1 | crown |
| 0H1610N01 | case back gasket |
| BEZ05G | band - leather band |
| ZEZ03G | band - leather band |
| ZK55A | band - leather band |
| ZK56A | band - leather band |
| 1CE035L0BDG | others - hour hand |
| 2CE052L0BDG | others - minute hand |
| 2P200G40XN14 | others - dial |
| 2P201F60XG14 | others - dial |
| 2P201F70XS19 | others - dial |
| 2P205D9025 | others - case |
| 2P209 | others - machine code |
| 82733920 | others - case ring |
| B090AS | others - push pin |
| 0351236 | others - winding stem |
| DZ0041B01 | others - crown and stem gasket |
| 05Y02FGM | others - minute hand |
| 05Y04DGM | others - minute hand |
| 05Y02NGM | others - minute hand |
| 05Y02FGH | others - hour hand |
| 05Y04DGH | others - hour hand |
| 05Y02NGH | others - hour hand |
Caliber 2P20
