The Seiko 2P20-5J90 is a watch model based on the 2P20 movement.
Parts List
| ESJN00JM01 | crystal |
| ESJN00JM02 | crystal |
| ESJN00JM | crystal |
| 30M98NA1 | crown |
| 30M98NS1 | crown - crown |
| 0H1970N01 | case back gasket - case back gasket |
| DZ0041B0 | case back gasket |
| 0H1970N0 | case back gasket |
| B5428S | band |
| B5428G-LKG | band - link |
| B5428S-LKS | band - link |
| B5428G | band |
| B5428G-BK4G | clasp - clasp |
| B5428S-BK4S | clasp - clasp |
| 0351236 | others - winding stem |
| 2P201E90XB14 | others - dial |
| 2P201E90XG14 | others - dial |
| 2P205J90 | others - case back |
| 2P205J9011 | others - case |
| 2P205J9025 | others - case |
| 2P209 | others - machine code |
| 82804960 | others - case ring |
| A120AS | others - push pin |
| DZ0041B01 | others - crown and stem gasket |
| 05Y30AGM | others - minute hand |
| 05Y30AGH | others - hour hand |
Caliber 2P20
