The Seiko 8420-5519 is a watch model based on the 8420 movement.
Parts List
| SA6N28SM01 | crystal |
| 25M02NG4 | crown |
| 25M02NS4 | crown - crown |
Caliber 8420













The Seiko 8420-5519 is a watch model based on the 8420 movement.
| SA6N28SM01 | crystal |
| 25M02NG4 | crown |
| 25M02NS4 | crown - crown |












