The Seiko 6020-4180 is a watch model based on the 6020 movement.
Parts List
| ES4N58SN00 | crystal |
| 30M44EX3 | crown |
| 30M44EE3 | crown |
| 0G0055B01 | case back gasket - crown and stem gasket |
| 0G2780N01 | case back gasket - case back gasket |
| GI086 | others - other band |
| GI087 | others - other band |
Caliber 6020
