The Seiko 8123-5020 is a watch model based on the 8123 movement.
Parts List
| SA4W34GN00 | crystal |
| 40M78NS1 | crown - crown |
| 40M78N01 | crown |
| FH3080B0A | case back gasket - case back gasket |
Caliber 8123
Seiko 8123-5020 Watch Guide
The Seiko 8123-5020 is a watch model based on the 8123 movement.
| SA4W34GN00 | crystal |
| 40M78NS1 | crown - crown |
| 40M78N01 | crown |
| FH3080B0A | case back gasket - case back gasket |