The Seiko 2P20-5790 is a watch model based on the 2P20 movement.
Parts List
| ET3N03JN01 | crystal |
| 30N63NA1 | crown - crown |
| AC004BA11 | case back gasket - crown and stem gasket |
| 0G1820B01 | case back gasket |
| BJJ08G | band - leather band |
| WJJ12G | band - leather band |
| WJJ17C | band - leather band |
| WJJ18C | band - leather band |
| 06Y17DCH | hand - hour hand |
| 1CE045L2BDG | others - hour hand |
| 2CE065L2BDG | others - minute hand |
| A130AS | others - push pin (for lb) |
| 2P201490XS14 | others - dial |
| 2P201500XG14 | others - dial |
| 2P205790 | others - case back |
| 2P20579025 | others - case |
| 2P2057902N | others - case |
| 82811090 | others - case ring |
| 06Y17DCM | others - minute hand |
| 06Y11DGM | others - minute hand |
| 06Y11DGH | others - hour hand |
Caliber 2P20
