The Seiko 7770-6100 is a watch model based on the 7770 movement.
Parts List
| 260N39SK01 | crystal |
| 25M69DX1 | crown |
| 25M69DX1C | crown |
| 0D230NAA1 | case back gasket - case back gasket |
| LK28P | band - leather band |
| A160AS | others - push pin |
| DZ0040B01 | others - crown and stem gasket |
| 81505075 | others - case back screw |
| 10P17JSH | others - hour hand |
| 10P59JSM | others - minute hand |