The Seiko 2P20-5580 is a watch model based on the 2P20 movement.
Parts List
| ET2N05JN01 | crystal |
| 30N63NA1 | crown - crown |
| 30ND3NA1 | crown - crown |
| 0G1700B01 | case back gasket |
| AC004BA11 | case back gasket - crown and stem gasket |
| G5084G | band - metal band |
| G5084G-BK5G | clasp - clasp |
| 06Y07DGH | others - hour hand |
| 82803630 | others - case ring |
| B090AS | others - push pin |
| 2P201070XB14 | others - dial |
| 2P205580 | others - case back |
| 2P20558025 | others - case |
| 06Y07DGM | others - minute hand |
Caliber 2P20
