The Seiko 2P20-5310 is a watch model based on the 2P20 movement.
Parts List
| ET1N29JN01 | crystal |
| 30NA9NA1 | crown |
| 0F140NA11 | case back gasket |
| 0E140BA1 | case back gasket |
| B5377G | band - metal band |
| B5377S | band - metal band |
| B5377S-BK3S | clasp - clasp |
| B5377G-BK3G | clasp - clasp |
| 2CG052L0BDG | others - minute hand |
| DA007BA11 | others - crown and stem gasket |
| B5377G-EP2 | others - endpiece |
| B5377S-EP2 | others - endpiece |
| 2P200570XB14 | others - dial |
| 2P200570XG14 | others - dial |
| 2P205310 | others - case back |
| 2P20531025 | others - case |
| 2P2053102H | others - case |
| 82802570 | others - case ring |
| 05Y11DGM | others - minute hand |
| 1CG037L0BDG | others - hour hand |
| 05Y07DGH | others - hour hand |
Caliber 2P20
