The Seiko 2P20-5F90 is a watch model based on the 2P20 movement.
Parts List
| ESGN22JN01 | crystal |
| 30M98NA1 | crown |
| 0H1860N01 | case back gasket - case back gasket |
| B5370C | band - metal band |
| B5370C-LKG | band - link |
| B5370G | band - metal band |
| B5370G-LKG | band - link |
| B5370G-BK4G | clasp - clasp |
| B5370C-BK4G | clasp - clasp |
| 0351236 | others - winding stem |
| 2P200J80XG14 | others - dial |
| 2P200J90XN14 | others - dial |
| 2P205F9025 | others - case |
| 2P205F902N | others - case |
| 2P209 | others - machine code |
| 82802120 | others - case ring |
| A110AS | others - push pin |
| DZ0041B01 | others - crown and stem gasket |
| 05Y18NGM | others - minute hand |
| 2CE055L0BDG | others - minute hand |
| 05Y10DGM | others - minute hand |
| 05Y10DGH | others - hour hand |
| 05Y18NGH | others - hour hand |
Caliber 2P20
