The Seiko 2P20-5380 is a watch model based on the 2P20 movement.
Parts List
| REFN07HN | crystal |
| REFN07HN01 | crystal |
| REFN07SN | crystal |
| REFN07SN01 | crystal |
| 30N99NA1 | crown - crown |
| 30N99NN1 | crown - crown |
| 0H1800B01 | case back gasket - case back gasket |
| 0H1850B01 | case back gasket |
| 0H1800B0 | case back gasket |
| 0H1850B0 | case back gasket |
| BKA04G | band - leather band |
| BKA15G | band - leather band |
| 05Y15CGH | hand - hour hand |
| 05Y15CGM | hand - minute hand |
| 1CC040A1BAA | others - hour hand |
| DZ0040B01 | others - crown and stem gasket |
| 0351236 | others - winding stem |
| 2P200780XS19 | others - dial |
| 2P20538043 | others - case |
| 2P20538043C | others - case |
| 2P205380GR | others - case |
| 2P205380GRA | others - case |
| 82800870 | others - case ring |
| A140AS | others - push pin |
Caliber 2P20
