The Seiko 6602-7031 is a watch model based on the 6602 movement.
Parts List
300W01AN00 | crystal |
55W10NS1 | crown |
55W10NA1 | crown |
Caliber 6602

The Seiko 6602-7031 is a watch model based on the 6602 movement.
300W01AN00 | crystal |
55W10NS1 | crown |
55W10NA1 | crown |