The Seiko 2Y00-5420 is a watch model based on the 2Y00 movement.
Parts List
| ET6N25JN01 | crystal |
| ET6N25JN | crystal |
| 32N23NS1 | crown |
| 32N23NA1 | crown |
| 32N23NN1 | crown |
| 0G1650B01 | case back gasket - case back gasket |
| 0G1600B01 | case back gasket - case back gasket |
| 0G1600B0 | case back gasket |
| B5509G | band |
| B5509G-BK3G | clasp - clasp |
| T070BS | others - push pin |
| 0351236 | others - winding stem |
| 05Y01DGH | others - hour hand |
| 2Y001810XB14 | others - dial |
| 2Y005420 | others - case back |
| 2Y00542025 | others - case |
| 2Y0065 | others - machine code |
| 82823950 | others - case ring |
| DA007BA11 | others - crown and stem gasket |
| 05Y01DGM | others - minute hand |
| 05Y13DGM | others - minute hand |
| 05Y13DGH | others - hour hand |
| 05Y13NGM | others - minute hand |
| 05Y13NGH | others - hour hand |
Caliber 2Y00
