The Seiko 7820-5140 is a watch model based on the 7820 movement.
Parts List
| ES0N40GN00 | crystal - crystal (inorganic) |
| 35R30NA1 | crown |
| 35R08NS1 | crown - crown |
| 35R30NS1 | crown |
| 0H2800B09 | case back gasket |
| CK611 | band - leather band |
| 11C16CSH | hand - hour hand |
| 11C16CSM | hand - minute hand |
| 11C16DSH | hand - hour hand |
| 11C16DSM | hand - minute hand |
| 7820514011 | others - case |
| 782052100187 | others - dial |
| 782052208XF3 | others - dial |
| 83107230 | others - case ring |
| A160CS | others - push pin |
| 0354780 | others - setting/winding stem |
| 0884715 | others - holding ring for dial |