The Seiko Y204-0020 is a watch model based on the Y204 movement.
Parts List
| 290A39JN03 | crystal - crystal |
| 9M50D7SNA0 | crown - crown |
| 0F240BA1S | case back gasket - case back gasket |
| 86621670 | case back gasket - plastic gasket for case back |
| DB0055B01 | case back gasket - crown and stem gasket |
| AD006BAA1 | pusher - button gasket |
| FF18AZ | band - band |
| 1AD080S0BAD | others - hour hand |
| 2AD115S0BAD | others - minute hand |
| 3AA125F1AFJ | others - second hand |
| 81611979 | others - pin |
| 0351421 | others - winding stem |
| Y2040020REA | others - case |
| 82845250 | others - case ring |
| A180BS | others - push pin |
| 150P01L30A | others - crystal(case back) |
Other models with the same movement