The Seiko 5Y23-8289 is a watch model based on the 5Y23 movement.
Parts List
| 290WB2HK01 | crystal |
| 290WB2HK | crystal |
| 35M82NA1 | crown - crown |
| FH2981B01 | case back gasket - case back gasket |
| FH2981B0 | case back gasket |
| 86574980 | crystal gasket - crystal gasket |
| 86574981 | crystal gasket |
| 86179411 | bezel gasket - plastic gasket for bezel |
| Z1623K-LKG | band - link |
| Z1623K | band |
| Z1623L-LKG | band - link |
| Z1623L | band |
| Z1623K-PB1 | clasp - parts for buckle/clasp |
| Z1623L-BK1S | clasp - clasp |
| Z1623L-PB1 | clasp - parts for buckle/clasp |
| Z1623K-BK1G | clasp - clasp |
| 0351670 | others - winding stem |
| 82800261 | others - case ring |
| 0801774 | others - date dial |
| 0866559 | others - holding ring for dial |
| 0878544 | others - date dial |
| 5Y238289 | others - case back |
| 5Y23828975 | others - case |
| 5Y23828998 | others - case |
| 5Y238508XB14 | others - dial |
| 5Y238518X914 | others - dial |
| 5Y239 | others - machine code |
| 82352241 | others - bezel |
| A200BS | others - push pin |
| 13SC04A2 | others - second hand |
| 12CD0NGM | others - minute hand |
| 0Z0060B01 | others - crown and stem gasket |
| 12CA4AGM | others - minute hand |
| 12CD0NGH | others - hour hand |
| 12CA4AGH | others - hour hand |