The Seiko 5Y23-5A50 is a watch model based on the 5Y23 movement.
Parts List
| ESFW05LN01 | crystal - crystal (inorganic) |
| 35MT1NN1 | crown - crown |
| 35MT1NS1 | crown - crown |
| FE278BAA1 | case back gasket |
| DH0100B01 | case back gasket - crown and stem gasket (4h) |
| 86591750 | crystal gasket - plastic gasket for crystal |
| 86591755 | crystal gasket - plastic gasket for crystal |
| T1007G | band - metal band |
| T1007S | band - metal band |
| T1008G | band - metal band |
| 10P25MGH | hand - hour hand |
| 10P25MGM | hand - minute hand |
| 10P25MKH | hand - hour hand |
| 10P25MKM | hand - minute hand |
| 10P25MSH | hand - hour hand |
| 10P25MSM | hand - minute hand |
| 10P35MGH | hand - hour hand |
| 10P35MGM | hand - minute hand |
| 3BA125F1BNG | others - second hand |
| 3BA125F1BNS | others - second hand |
| 0801722 | others - date dial |
| A200BS | others - push pin |
| 0351105 | others - winding stem |
| 5Y235A50 | others - case back |
| 5Y235A5061 | others - case |
| 5Y235A5061A | others - case |
| 5Y235A5075 | others - case |
| 5Y235A7LXB13 | others - dial |
| 5Y235A7LXG14 | others - dial |
| 5Y235A7LXS13 | others - dial |
| 5Y235A8LXG14 | others - dial |
| 82821930 | others - case ring |
| 84309535 | others - dial ring |
| 84309536 | others - dial ring |
| 84309537 | others - dial ring |
| 10SC31NG | others - second hand |
| 10SC27NG | others - second hand |
| 10SC31NS | others - second hand |