The Seiko 5Y23-5140 is a watch model based on the 5Y23 movement.
Parts List
| SABW28JM01 | crystal |
| SABW28JM | crystal |
| 35M82NA1 | crown - crown |
| 0A2700B01 | case back gasket - gasket |
| G1432G | band |
| 0351670 | others - winding stem |
| 13SC04A2 | others - second hand |
| 08T10DAM | others - minute hand |
| 0Z0060B01 | others - crown and stem gasket |
| 08T10DAH | others - hour hand |