The Seiko 5E21-6E50 is a watch model based on the 5E21 movement.
Parts List
| 270WB4SR02 | crystal - crystal |
| 30MA2NB1 | crown - crown |
| 30MA2NA1 | crown - crown |
| 30MA2NS1 | crown - crown |
| 0F240NA1S | case back gasket - case back gasket |
| D094AZ | band - metal band |
| DA81DW | band - band |
| DAV7DW | band - leather band |
| DAV9AW | band - leather band |
| D094CZ | band - metal band |
| 3BA125F1BNG | others - second hand |
| 3BA125F1BNS | others - second hand |
| 1BC080A1BNG | others - hour hand |
| 2BC115A1BNG | others - minute hand |
| 0351624 | others - winding stem |
| 82814640 | others - case ring |
| 1BA075A2BAA | others - hour hand |
| 5E216E5075 | others - case |
| 5E216E50 | others - case back |
| 5E215 | others - machine code |
| 5E216E507E | others - case |
| 5E216E507N | others - case |
| 5E216F00XS14 | others - dial |
| 5E216F10XS19 | others - dial |
| 5E216F30XS19 | others - dial |
| 5E216F40XS19 | others - dial |
| 5E216F60XE14 | others - dial |
| 87020283 | others - back plate |
| A160BS | others - push pin |
| 1BB075A1BNG | others - hour hand |
| EZ0035B01 | others - crown and stem gasket |
| 1BC075A1BAC | others - hour hand |
| 2BA115A0BAA | others - minute hand |
| 2BB115A1BNG | others - minute hand |
| 2BC115A1BAC | others - minute hand |