The Seiko 7770-5090 is a watch model based on the 7770 movement.
Parts List
| ESKN27SN00 | crystal |
| 25N01DE5 | crown |
| 0H2300B01 | case back gasket |
| GI099 | others - other band |
| DZ0040B01 | others - crown and stem gasket |
The Seiko 7770-5090 is a watch model based on the 7770 movement.
| ESKN27SN00 | crystal |
| 25N01DE5 | crown |
| 0H2300B01 | case back gasket |
| GI099 | others - other band |
| DZ0040B01 | others - crown and stem gasket |