The Seiko 8420-5740 is a watch model based on the 8420 movement.
Parts List
| ES6N38SN00 | crystal - crystal |
| 25M02NA4 | crown - crown |
| 0G1900N01 | case back gasket - case back gasket |
| PK63A | band - band |
| PK62A | band - band |
| 08R34DGH | others - hour hand |
| 08R34DGM | others - minute hand |
| 0354815 | others - winding stem |
| 84205930XB14 | others - dial |
| 84205930XG14 | others - dial |
| A120AS | others - push pin |
| 8420574031 | others - case |
| 82705200 | others - case ring |
| DZ0041B01 | others - crown and stem gasket |
Caliber 8420
