The Seiko 2P21-0D10 is a watch model based on the 2P21 movement.
Parts List
| 190W28JN01 | crystal |
| 30MA2EK1 | crown |
| 0A1800N01 | case back gasket |
| DM02A | band - metal band |
| A120BS | others - push pin (for lb) |
| 2P210D10 | others - case back |
| 2P210D10RC | others - case |
| 2P211A20XS19 | others - dial |
| 2P219 | others - machine code |
| 82801760 | others - case ring |
| 0351236 | others - winding stem |
| EZ0035B01 | others - crown and stem gasket |
| 08SC14NS | others - second hand |
| 07TB8ASH | others - hour hand |
| 07TB8ASM | others - minute hand |
Caliber 2P21
