The Seiko 8420-5410 is a watch model based on the 8420 movement.
Parts List
| SABN17SN00 | crystal - crystal |
| 25N01DA5 | crown |
| 25N01DG5 | crown - crown |
| 0H1900B01 | case back gasket - case back gasket |
| ZK26A | band - band |
| 07R31DGH | others - hour hand |
| 07R31DGM | others - minute hand |
| A130AS | others - push pin (for lb) |
| 84205480XG14 | others - dial |
| 83128350 | others - case ring |
| 842054104LA | others - case |
| 0354815 | others - winding stem |
| DZ0040B01 | others - crown and stem gasket |
| 1CA045A1BNG | others - hour hand |
| 2CA070A1BDG | others - minute hand |
Caliber 8420
