The Seiko 2P20-5890 is a watch model based on the 2P20 movement.
Parts List
| ET3N05JM01 | crystal |
| 30ND3NK1 | crown |
| 30N63NA1 | crown - crown |
| 30ND3NA1 | crown - crown |
| 0G2000B02 | case back gasket - case back gasket |
| AC004BA11 | case back gasket - crown and stem gasket |
| ZKA17D | band - leather band |
| ZKZ17E | band - leather band |
| ZKZ21E | band - leather band |
| 07Y31DGH | hand - hour hand |
| 07Y31DGM | hand - minute hand |
| 2P201460XL14 | others - dial |
| 2P201470XB14 | others - dial |
| 2P205890 | others - case back |
| 2P205890J7 | others - case |
| 2P205890J8 | others - case |
| ZKA17D-EP1 | others - endpiece |
| 82811050 | others - case ring |
| A140AS | others - push pin |
| 07Y07DGH | others - hour hand |
| ZKZ21E-EP1 | others - endpiece |
| ZKZ17E-EP1 | others - endpiece |
| 07Y07DGM | others - minute hand |
Caliber 2P20
