The Seiko 8522-0031 is a watch model based on the 8522 movement.
Parts List
| 180N69LN00 | crystal |
| 35NB5NA1 | crown |
| 35NB5NS1 | crown |
| 0H1600B01 | case back gasket - case back gasket |
| DZ0065B01 | case back gasket - button gasket |
Caliber 8522
Seiko 8522-0031 Watch Guide