The Seiko 5421-0110 is a watch model based on the 5421 movement.
Parts List
| 170N08AN00 | crystal |
| 35M94NS1 | crown |
| 0A1400N01 | case back gasket |
| 0G0055B01 | case back gasket - crown and stem gasket |
| 0G0055B0 | case back gasket |
| BEA21S | band - leather band |
| 07SC02NS | others - second hand |
| 07T04NSH | others - hour hand |
| 07T04NSM | others - minute hand |
| 0354705 | others - winding stem |
| 542101102E | others - case |
| 54210590XS13 | others - dial |
| 54211 | others - machine code |
| 82701840 | others - case ring |
| T090AS | others - push pin |
Caliber 5421
