The Seiko B004-5020 is a watch model based on the B004 movement.
Parts List
ES5W49LN00 | crystal |
40MF7NS1 | crown |
40MF7NA1 | crown |
FE188BAA1 | case back gasket |
EB0055B0A | others - crown and stem gasket |
Other models with the same movement
B004-4000 |
B004-400A |
B004-5000 |
B004-5009 |
B004-5010 |