The Seiko 5Y23-8039 is a watch model based on the 5Y23 movement.
Parts List
| 290WA6JM02 | crystal - crystal |
| 290WA6JM01 | crystal - crystal |
| GILT | crystal |
| 290WA6JM | crystal |
| 35M82NA1 | crown - crown |
| 35M82NS1 | crown - crown |
| 0A2600N01 | case back gasket - case back gasket |
| BPJ12G | band - leather band |
| BPJ06S | band |
| BPJ06G | band |
| 82803220 | others - case ring |
| 0801722 | others - date dial |
| 5Y238 | others - machine code |
| 5Y238030XG14 | others - dial |
| 5Y238030XS13 | others - dial |
| 5Y238039 | others - case back |
| 5Y23803961 | others - case |
| 5Y23803975 | others - case |
| A180BS | others - push pin |
| 0351670 | others - winding stem |
| 13SC04A2 | others - second hand |
| 13SC04ES | others - second hand |
| 2BA125A0BNG | others - minute hand |
| 0Z0060B01 | others - crown and stem gasket |
| 12T14NGM | others - minute hand |
| 12T02N1H | others - hour hand |
| 12T14NSM | others - minute hand |
| 12T02N2H | others - hour hand |