The Seiko 2P21-0D50 is a watch model based on the 2P21 movement.
Parts List
| 200W24JN01 | crystal |
| 30MA2NH1 | crown - crown |
| 0A1800B01 | case back gasket |
| DA42A | band - band |
| 07SC02NG | others - second hand |
| 0351236 | others - winding stem |
| 82801760 | others - case ring |
| 2P210D50WE | others - case |
| 2P210D50 | others - case back |
| 2P211A50XS19 | others - dial |
| 2P219 | others - machine code |
| A120AS | others - push pin |
| EZ0035B01 | others - crown and stem gasket |
| 07TA0FGM | others - minute hand |
| 07TA0FGH | others - hour hand |
Caliber 2P21
