The Seiko 2Y00-5D20 is a watch model based on the 2Y00 movement.
Parts List
| ESBW12JN01 | crystal |
| ESBW12JN | crystal |
| 30MA2NA1 | crown - crown |
| 0A1800N01 | case back gasket |
| EZ0035B0 | case back gasket |
| B5522G | band - metal band |
| B5522G-BK4G | clasp - clasp |
| 0351236 | others - winding stem |
| 2Y000J70XR14 | others - dial |
| 2Y000J70XS14 | others - dial |
| 2Y000J90XG14 | others - dial |
| 2Y001B90XB14 | others - dial |
| 2Y001B90XG14 | others - dial |
| 2Y001C00XL14 | others - dial |
| 2Y001C00XS14 | others - dial |
| 2Y005D20 | others - case back |
| 2Y005D2075 | others - case |
| 2Y009 | others - machine code |
| 82801020 | others - case ring |
| A100AS | others - push pin |
| EZ0035B01 | others - crown and stem gasket |
| 2CA052A0BNG | others - minute hand |
| 05Y02NGM | others - minute hand |
| 05Y04DAH | others - hour hand |
| 1CA035A0BNG | others - (24 hour hand) |
| 05Y04DAM | others - minute hand |
| 05Y02NGH | others - hour hand |
Caliber 2Y00
