The Seiko 5E21-0010 is a watch model based on the 5E21 movement.
Parts List
| 280A02SN02 | crystal - crystal |
| 6M30D3SNG0 | crown - crown |
| 0F240BA1S | case back gasket - case back gasket |
| DC89BW | band - band |
| DC87BW | band - band |
| WQ70BW | band - leather band |
| WQ57BW | band - band |
| DC91BW | band - band |
| 3AA125F1ANG | others - second hand |
| 3AA125F3ANG | others - second hand |
| 1BC080A1BNG | others - hour hand |
| 1BA085A1BNG | others - hour hand |
| 1BC080A1BAA | others - hour hand |
| 1BF080L1BDG | others - hour hand |
| 2BA120A1BNG | others - minute hand |
| 2BC110A1BNG | others - minute hand |
| 2BC115A1BAA | others - minute hand |
| 2BF115L1BDG | others - minute hand |
| 5E21001075A | others - case |
| 82812640 | others - case ring |
| 5E210010 | others - case back |
| 5E21001075B | others - case |
| 5E21001075C | others - case |
| 0351624 | others - winding stem |
| 5E2100107HB | others - case |
| 5E2100107HA | others - case |
| DZ0040B01 | others - crown and stem gasket |
| 5E210010XS14 | others - dial |
| 5E210020XS19 | others - dial |
| 5E210030XS19 | others - dial |
| 5E210060XE19 | others - dial |
| 5E215 | others - machine code |
| 87020283 | others - back plate |
| A170BS | others - push pin |