The Seiko 2P20-5G1A is a watch model based on the 2P20 movement.
Parts List
| RE8N40JN01 | crystal |
| 30M98NA1 | crown |
| 0H1970B01 | case back gasket |
| 86573840 | crystal gasket |
| DK18C | band - leather band |
| 2P200K90XN14 | others - dial |
| 2P205G1A | others - case back |
| 2P205G1A2N | others - case |
| 2P209 | others - machine code |
| 82734040 | others - case ring |
| A160AS | others - push pin |
| 0351236 | others - winding stem |
| 06Y16DGH | others - hour hand |
| 06Y18DGM | others - minute hand |
| DZ0041B01 | others - crown and stem gasket |
Caliber 2P20
