The Seiko 7771-5081 is a watch model based on the 7771 movement.
Parts List
| ESFW03SN01 | crystal |
| 27M13DE5 | crown |
| AC004BA11 | case back gasket - crown and stem gasket |
| 86591670 | crystal gasket |
| 0F220NAA3 | bezel gasket |
| VI122 | others - other band |
| 81505076 | others - case back screw |
| 09S55JGH | others - hour hand |
| 09S55JGM | others - minute hand |
| 10SC733G | others - second hand |