The Seiko 7740-5020 is a watch model based on the 7740 movement.
Parts List
| REHN07SN01 | crystal |
| 27M17DA5 | crown |
| 0F240NA11 | case back gasket |
| AC004BA11 | case back gasket - crown and stem gasket |
| LK39C | band - leather band |
| 08S17DGH | others - hour hand |
| 0354371 | others - winding stem |
| 774010 | others - machine code |
| 7740502025A | others - case |
| 77405020XA14 | others - dial |
| 82811590 | others - case ring |
| 89968111 | others - back plate |
| A160BS | others - push pin |
| 08P35DGM | others - minute hand |
| 2AC075A1BDG | others - minute hand |
Other models with the same movement