The Seiko 2P20-5K40 is a watch model based on the 2P20 movement.
Parts List
| ESHN40JN | crystal |
| ESHN40JN01 | crystal |
| 30MD2NA1 | crown |
| 0H2520N01 | case back gasket - case back gasket |
| 0H2520N | case back gasket |
| DZ0041B0 | case back gasket |
| 08V24DGM | hand - minute hand |
| 08V10NGH | others - hour hand |
| 2P201B30XG14 | others - dial |
| 2P205K40GR | others - case |
| 2P209 | others - machine code |
| 82803640 | others - case ring |
| 0351236 | others - winding stem |
| DZ0041B01 | others - crown and stem gasket |
Caliber 2P20
