The Seiko 5Y23-8000 is a watch model based on the 5Y23 movement.
Parts List
| 290WA2HN01 | crystal |
| 290WA2HN | crystal |
| 290P01HN00 | crystal |
| 35M82NA1 | crown - crown |
| FH2981B01 | case back gasket - case back gasket |
| FH2981B0 | case back gasket |
| 86574981 | crystal gasket |
| G1307G | band - metal band |
| G1307G-LKG | band - link |
| G1307G-PB1 | clasp - parts for buckle/clasp |
| G1307G-BK1G | clasp - clasp |
| 0351670 | others - winding stem |
| 82800261 | others - case ring |
| 0801722 | others - date dial |
| 0866559 | others - holding ring for dial |
| 5Y238000 | others - case back |
| 5Y23800075 | others - case |
| 5Y23800LXG14 | others - dial |
| 5Y239 | others - machine code |
| A180BS | others - push pin |
| 13SC04A2 | others - second hand |
| 0Z0060B01 | others - crown and stem gasket |
| 12C52LGM | others - minute hand |
| 12C52LGH | others - hour hand |