The Seiko 2P21-5C00 is a watch model based on the 2P21 movement.
Parts List
| SAEN48JN01 | crystal |
| SAEN48JN | crystal |
| 30M98NA1 | crown |
| 30M98NS1 | crown - crown |
| 0H1610N01 | case back gasket |
| DZ0041B0 | case back gasket |
| 0H1610N0 | case back gasket |
| Z5226G | band - metal band |
| Z5226S | band - metal band |
| Z5226G-BK3G | clasp - clasp |
| 05T02NSM | hand - minute hand |
| 05T06NSH | hand - hour hand |
| 07SC02NG | others - second hand |
| 07SC02NS | others - second hand |
| 0351236 | others - winding stem |
| 05T02NGM | others - minute hand |
| 2P210E30XB14 | others - dial |
| 2P210E30XG14 | others - dial |
| 2P210E30XS13 | others - dial |
| 2P215C00 | others - case back |
| 2P215C0025 | others - case |
| 2P215C002E | others - case |
| 2P219 | others - machine code |
| 82733920 | others - case ring |
| B080AS | others - push pin |
| 05T06NGH | others - hour hand |
| DZ0041B01 | others - crown and stem gasket |
Caliber 2P21
