The Seiko 2P20-5600 is a watch model based on the 2P20 movement.
Parts List
| ET2N11JN01 | crystal |
| ET2N11JN | crystal |
| 30ND3NA1 | crown - crown |
| 30N63NA1 | crown - crown |
| 30N63NS1 | crown |
| 30ND3NS1 | crown |
| AC004BA1 | case back gasket |
| 0G1550B0 | case back gasket |
| 0G1550B01 | case back gasket |
| AC004BA11 | case back gasket - crown and stem gasket |
| Q5019G | band - metal band |
| Q5019S | band - metal band |
| Q5019S-BK3S | clasp - clasp |
| Q5019G-BK3G | clasp - clasp |
| 05Y05DSM | others - minute hand |
| 05Y05DSH | others - hour hand |
| 05Y05DGH | others - hour hand |
| 82803750 | others - case ring |
| B080AS | others - push pin |
| 2P201080XG14 | others - dial |
| 2P201080XS13 | others - dial |
| 2P205600 | others - case back |
| 2P20560025 | others - case |
| 2P2056002E | others - case |
| 05Y05DGM | others - minute hand |
Caliber 2P20
