The Seiko 5Y23-1001 is a watch model based on the 5Y23 movement.
Parts List
| 260P05LN03 | crystal |
| 260P05LN | crystal |
| 35MF1NN1 | crown - crown |
| 0F220BAA3 | case back gasket - case back gasket |
| 0F220BAA | case back gasket |
| 86569450 | crystal gasket - plastic gasket for crystal |
| 86579370 | bezel gasket |
| Z1605K | band |
| Z1605K-LKG | band - link |
| Z1605K-PB1 | clasp - parts for buckle/clasp |
| Z1605K-BK1G | clasp - clasp |
| 2BB110A1BNG | others - minute hand |
| 3AA125F1ANG | others - second hand |
| 11SC43T1 | others - second hand |
| EB0055B01 | others - crown and stem gasket |
| 0801774 | others - date dial |
| 0801776 | others - date dial |
| 5Y231000 | others - case back |
| 5Y23100175 | others - case |
| 5Y231011XB14 | others - dial |
| 5Y231011XG14 | others - dial |
| 82351431 | others - bezel |
| 82812470 | others - case ring |
| B080BS | others - push pin |
| T080BS | others - push pin |
| 0351105 | others - winding stem |
| 0351670 | others - winding stem |
| 1BB075A1BNG | others - hour hand |
| 11T11NGH | others - hour hand |
| 11T11NGM | others - minute hand |