The Seiko 8Y21-0040 is a watch model based on the 8Y21 movement.
Parts List
DH0115B01 | case back gasket - crown and stem gasket |
Caliber 8Y21





The Seiko 8Y21-0040 is a watch model based on the 8Y21 movement.
DH0115B01 | case back gasket - crown and stem gasket |