The Seiko 5Y23-7A30 is a watch model based on the 5Y23 movement.
Parts List
| 285P09HN03 | crystal |
| 285WA3HN01 | crystal |
| 285P09HN | crystal |
| 285WA3HN | crystal |
| 40E23NA1 | crown - crown |
| 40E23NS1 | crown - crown |
| DE010BAA | case back gasket |
| FE298BAA1 | case back gasket - case back gasket |
| 86561230 | crystal gasket |
| 86591030 | bezel gasket - plastic gasket for bezel |
| Z1505C | band |
| Z1505H NL | band |
| NL | band |
| Z1505C-LKG | band - link |
| Z1505S NL | band |
| Z1505C NL | band |
| Z1505C-PB1 | clasp - parts for buckle/clasp |
| Z1505C-BK1S | clasp - clasp |
| 2BB110A1BNG | others - minute hand |
| 3AA125F1ANG | others - second hand |
| 12SC39T1 | others - second hand |
| 3AA125F3A6S | others - second hand |
| 3AA125F3ANG | others - second hand |
| 1BA080A1BAA | others - hour hand |
| DE010BAA1 | others - crown and stem gasket |
| 12SC23T2 | others - second hand |
| 0801774 | others - date dial |
| 5Y237A30 | others - case back |
| 5Y237A3098 | others - case |
| 5Y237B10XS14 | others - dial |
| 82342211 | others - bezel |
| 82732990 | others - case ring |
| A160CS | others - push pin |
| 0351105 | others - winding stem |
| 1BB075A1BNG | others - hour hand |
| 12SC23T1 | others - second hand |
| 11T11NGM | others - minute hand |
| 11T11NGH | others - hour hand |
| 12T27CSM | others - minute hand |
| 2BA120A1BAA | others - minute hand |
| 11T21NGM | others - minute hand |
| 12T07A1M | others - minute hand |
| 12T27CSH | others - hour hand |
| 11T13NGH | others - hour hand |
| 12T07A1H | others - hour hand |