The Seiko 2P20-5800 is a watch model based on the 2P20 movement.
Parts List
| REHN25HR01 | crystal |
| 30ND3NH1 | crown - crown |
| 30N63NG1 | crown |
| 0G2450B01 | case back gasket - case back gasket |
| AC004BA11 | case back gasket - crown and stem gasket |
| B1513H-LKG | band - link |
| B1513H | band - metal band |
| B1513H-BK4G | clasp - clasp |
| 1CG045L0BDG | others - hour hand |
| 2P201510XB14 | others - dial |
| 2P205800 | others - case back |
| 2P205800JJ | others - case |
| 82812250 | others - case ring |
| A160BS | others - push pin |
| 2CG070L2BDG | others - minute hand |
| 07Y17DGM | others - minute hand |
| 07Y17DGH | others - hour hand |
Caliber 2P20
