The Seiko Y481-1720 is a watch model based on the Y481 movement.
Parts List
| 260A03LN03 | crystal |
| 260N45LN01 | crystal |
| 35E17NN1 | crown |
| 35E59NN4 | crown |
| 0G1940B02 | case back gasket |
| 064ZFK | band |
| 062ZFK | band |
| 063ZFK | band - leather band |
| 066LF | band |
| 3BA125F1BNG | others - second hand |
| 3AA125F1ANG | others - second hand |
| 11SC43T1 | others - second hand |
| 11P49NGM | others - minute hand |
| 11P49NGH | others - hour hand |
| 1AA075A1BNG | others - hour hand |
| A160BS | others - push pin |
| 0351112 | others - winding stem |
| 1AA075A1BAA | others - hour hand |
| 2AA110A1BAA | others - minute hand |
| 2AA110A1BNG | others - minute hand |