The Seiko 2Y00-0450 is a watch model based on the 2Y00 movement.
Parts List
| 190A01SN02 | crystal |
| 190NB5SN01 | crystal |
| 190A01SN | crystal |
| 190NB5SN | crystal |
| 30N99NA1 | crown - crown |
| 30N99NN1 | crown - crown |
| 0H1800B01 | case back gasket - case back gasket |
| 0H1850B01 | case back gasket |
| AC004BA11 | case back gasket - crown and stem gasket |
| 0H1800B0 | case back gasket |
| 08Y05DGM | others - minute hand |
| 0351236 | others - winding stem |
| 2Y000450GR | others - case |
| 2Y002530XG14 | others - dial |
| 2Y002540XS19 | others - dial |
| 2Y0065 | others - machine code |
| 82801410 | others - case ring |
| 07Y23CGM | others - minute hand |
| 08Y05NGH | others - hour hand |
| 07Y23AGH | others - hour hand |
Caliber 2Y00
