The Seiko Y143-7020 is a watch model based on the Y143 movement.
Parts List
| 280W30GN00 | crystal |
| 35M82NS1 | crown - crown |
| 86173340 | case back gasket - plastic gasket for crystal |
| 86563040 | crystal gasket |
| 86177800 | bezel gasket - plastic gasket for bezel |
| AA72B | band - metal band |
| 12C46ASM | others - minute hand |
| 12C46ASH | others - hour hand |
| A180BS | others - push pin |
| 0354866 | others - winding stem |
| 0Z0060B01 | others - crown and stem gasket |
| 12C68ASH | others - hour hand |
| 12C68ASM | others - minute hand |