The Seiko 5420-0040 is a watch model based on the 5420 movement.
Parts List
| 190N26AN00 | crystal |
| 35M94NS1 | crown |
| 0A1700N01 | case back gasket - case back gasket |
| 0G0055B01 | case back gasket - crown and stem gasket |
| 0G0055B0 | case back gasket |
| GGA03S | band - leather band |
| GLL25 | band - leather band |
| 08R02ASM | hand - minute hand |
| 08R02AGH | others - hour hand |
| 08R02AGM | others - minute hand |
| 08R02ASH | others - hour hand |
| A110BS | others - push pin (for mb) |
| 5420004011 | others - case |
| 54200200XS19 | others - dial |
| 54209 | others - machine code |
| 0354705 | others - winding stem |
| 82702340 | others - case ring |
Caliber 5420
