The Seiko 7770-5210 is a watch model based on the 7770 movement.
Parts List
ESWN81SN00 | crystal |
25N03DE5 | crown - crown |
25N03DE5C | crown |
0C280NA11 | case back gasket |
VI060 | others - other band |
DZ0040B01 | others - crown and stem gasket |
09S31CGH | others - hour hand |