The Seiko 2P21-0190 is a watch model based on the 2P21 movement.
Parts List
| 170N63JN01 | crystal |
| 170A02JN02 | crystal - crystal |
| 30N99NA1 | crown - crown |
| 0G1600B01 | case back gasket - case back gasket |
| 0D165BA11 | case back gasket |
| ZZ13A | band - metal band |
| ZZ14A | band - metal band |
| 3BA075F1BNG | others - second hand |
| 07SC43NG | others - second hand |
| 0351236 | others - winding stem |
| 81606439 | others - bracelet fixing pin |
| 81182699 | others - bracelet fixing pipe |
| 81609399 | others - bracelet fixing pin |
| 2P21019025 | others - case |
| 2P2101902N | others - case |
| 2P210600XS14 | others - dial |
| 2P210630XS14 | others - dial |
| 2P219 | others - machine code |
| 82813690 | others - case ring |
| DZ0040B01 | others - crown and stem gasket |
| 07T07DGH | others - hour hand |
| 07T07DGM | others - minute hand |
| 1BA047A1BNG | others - hour hand |
| 2BA070A1BDG | others - minute hand |
Caliber 2P21
