The Seiko 2P21-5300 is a watch model based on the 2P21 movement.
Parts List
| ESEW17SN01 | crystal |
| 30M49NA1 | crown |
| 0H1900B01 | case back gasket - case back gasket |
| AC004BA11 | case back gasket - crown and stem gasket |
| 0F170BAA3 | case back gasket - case back gasket |
| DL08B | band - leather band |
| 3BA075F1BNG | others - second hand |
| 07SC43NG | others - second hand |
| 0351236 | others - winding stem |
| 2P210870XS14 | others - dial |
| 2P215300 | others - case back |
| 2P21530075 | others - case |
| 2P219 | others - machine code |
| 82823610 | others - case ring |
| A120AS | others - push pin |
| 07T07DGH | others - hour hand |
| 07T07DGM | others - minute hand |
| 1BA047A1BNG | others - hour hand |
| 2BA070A1BDG | others - minute hand |
| 2BA070A1BNG | others - minute hand |
Caliber 2P21
