The Seiko 5Y23-5050 is a watch model based on the 5Y23 movement.
Parts List
| SA3W78LM01 | crystal |
| SA3W78LM | crystal |
| 35M82NA1 | crown - crown |
| 0A2600N01 | case back gasket - case back gasket |
| 86563101 | crystal gasket |
| B1620D | band |
| 0351670 | others - winding stem |
| 13SC04A2 | others - second hand |
| 0Z0060B01 | others - crown and stem gasket |
| 10T38NAM | others - minute hand |
| 10T38NAH | others - hour hand |