The Seiko 7770-5091 is a watch model based on the 7770 movement.
Parts List
| 25N01DE5C | crown |
| 0H2400N01 | case back gasket - case back gasket |
| GI099 | others - other band |
The Seiko 7770-5091 is a watch model based on the 7770 movement.
| 25N01DE5C | crown |
| 0H2400N01 | case back gasket - case back gasket |
| GI099 | others - other band |