The Seiko 5Y81-6020 is a watch model based on the 5Y81 movement.
Parts List
| 245W18JU01 | crystal |
| 245W18JU | crystal |
| 35M82NA1 | crown - crown |
| 0A2500B01 | case back gasket - case back gasket |
| WLA07E | band - leather band |
| WLA08E | band |
| 5Y816020 | others - case back |
| 5Y816020WG | others - case |
| 5Y816050XB14 | others - dial |
| 5Y819 | others - machine code |
| 82719360 | others - case ring |
| A150BS | others - push pin |
| 0354530 | others - winding stem |
| 13SC04A2 | others - second hand |
| 0Z0060B01 | others - crown and stem gasket |
| 10CP2DGM | others - minute hand |
| 10CP2DGH | others - hour hand |
Other models with the same movement