The Seiko 7771-5011 is a watch model based on the 7771 movement.
Parts List
| 0F230BAA5 | case back gasket - case back gasket |
| GB10A | band - metal band |
| 81606439 | others - bracelet fixing pin |
| 81180229 | others - bracelet fixing pipe |
| 81606299 | others - bracelet fixing pin |