The Seiko 2Y00-5020 is a watch model based on the 2Y00 movement.
Parts List
| ET5N05JN01 | crystal |
| ET5N05JN | crystal |
| 30ND3NN1 | crown |
| 0D155BA11 | case back gasket |
| DZ0040B0 | case back gasket |
| WEJ10G | band |
| WEA06G | band - leather band |
| WEA07G | band - leather band |
| WEJ07G | band - leather band |
| WEJ11G | band - leather band |
| WEJ12G | band - leather band |
| 2CC055A1BNG | others - minute hand |
| 1CC040A1BNG | others - hour hand |
| DZ0040B01 | others - crown and stem gasket |
| 2Y000120XB14 | others - dial |
| 2Y000140XG14 | others - dial |
| 2Y000150XB14 | others - dial |
| 2Y000150XG14 | others - dial |
| 2Y005020 | others - case back |
| 2Y00502025 | others - case |
| 2Y0065 | others - machine code |
| 82820470 | others - case ring |
| T090BS | others - push pin |
| 05Y13DGM | others - minute hand |
| 05Y15NGM | others - minute hand |
| 05Y15NGH | others - hour hand |
| 2CG055L0BDG | others - minute hand |
| 05Y13DGH | others - hour hand |
| 1CG037L0BDG | others - hour hand |
| 05Y07DGH | others - hour hand |
| 05Y13NGM | others - minute hand |
| 05Y13NGH | others - hour hand |
| 05Y07DGM | others - minute hand |
Caliber 2Y00
