The Seiko Y481-1620 is a watch model based on the Y481 movement.
Parts List
| 215N15AN01 | crystal - crystal (organic) |
| 35MF9N11 | crown |
| 35MF9NG1 | crown |
| 35MF9NU1 | crown |
| 35MJ9NN1 | crown - crown |
| 0Z1850B01 | case back gasket - case back gasket |
| DH0115B01 | case back gasket - crown and stem gasket |
| 798LB | band - leather band |
| 800LB | band - leather band |
| 801LB | band - leather band |
| 803LB | band - leather band |
| 806LB | band - leather band |
| 863LZ | band - leather band |
| 865LZ | band - leather band |
| 867LZ | band - leather band |
| A130BS | others - push pin |