The Seiko 7770-5041 is a watch model based on the 7770 movement.
Parts List
SACN87SN00 | crystal |
25N01DE5 | crown |
25N01DE5C | crown |
0H2500N01 | case back gasket |
YK18ZA | band - leather band |
A180AS | others - push pin |
DZ0040B01 | others - crown and stem gasket |
08S29DHH | others - hour hand |
08S29DHM | others - minute hand |