The Seiko 7771-5070 is a watch model based on the 7771 movement.
Parts List
| SAHN05SN01 | crystal |
| 25M45DE4 | crown - crown |
| 25M45DE4C | crown |
| 0H2820N01 | case back gasket |
| VI121 | others - other band |
| DZ0040B01 | others - crown and stem gasket |
| 09S09JGH | others - hour hand |
| 09S09JGM | others - minute hand |
| SAHN05SN01 | crystal |
| 25M45DE4 | crown - crown |
| 25M45DE4C | crown |
| 0H2820N01 | case back gasket |
| VI121 | others - other band |
| DZ0040B01 | others - crown and stem gasket |
| 09S09JGH | others - hour hand |
| 09S09JGM | others - minute hand |