The Seiko 8420-6140 is a watch model based on the 8420 movement.
Parts List
| BA1N10SN00 | crystal - crystal |
| 25M02NA4 | crown - crown |
| 0G1800N01 | case back gasket |
| DK18B | band - band |
| A130AS | others - push pin (for lb) |
| 84200570XG14 | others - dial |
| 842061404F | others - case |
| 82708680 | others - case ring |
| 0354815 | others - winding stem |
| 06R11DGH | others - hour hand |
| 06R11DGM | others - minute hand |
| DZ0041B01 | others - crown and stem gasket |
Caliber 8420
