The Seiko 2P20-5900 is a watch model based on the 2P20 movement.
Parts List
| REHN27HR03 | crystal |
| 30N63NS1 | crown |
| 30ND3NS1 | crown |
| 0D205BA11 | case back gasket |
| AC004BA11 | case back gasket - crown and stem gasket |
| BHZ37F | band - leather band |
| 05Y01DGH | others - hour hand |
| 2P201540XN24 | others - dial |
| 2P205900 | others - case back |
| 2P205900KX | others - case |
| 82812230 | others - case ring |
| A120AS | others - push pin |
| 05Y01DGM | others - minute hand |
Caliber 2P20
