The Seiko 3423-0120 is a watch model based on the 3423 movement.
Parts List
| 200W16GN00 | crystal - crystal |
| 35M78NS1 | crown - crown |
| FH2081B0A | case back gasket - case back gasket |
| 8617 8171 | crystal gasket |
Caliber 3423
Seiko 3423-0120 Watch Guide
The Seiko 3423-0120 is a watch model based on the 3423 movement.
| 200W16GN00 | crystal - crystal |
| 35M78NS1 | crown - crown |
| FH2081B0A | case back gasket - case back gasket |
| 8617 8171 | crystal gasket |