The Seiko Y112-8129 is a watch model based on the Y112 movement.
Parts List
| 285W50GN00 | crystal |
| 35M82NA1 | crown - crown |
| 35M82NS1 | crown - crown |
| 35M82NF1 | crown |
| 86173340 | case back gasket - plastic gasket for crystal |
| 86569440 | crystal gasket - plastic gasket for crystal |
| 7BS9ZY | band - leather band |
| 82704620 | others - case ring |
| A180BS | others - push pin |
| Y11281297S | others - case |
| Y1128150XG18 | others - dial |
| 0354765 | others - winding stem |
| 0801579 | others - date dial |
| 13SC04A2 | others - second hand |
| 0Z0060B01 | others - crown and stem gasket |
| 12C20AGM | others - minute hand |
| 12C20AGH | others - hour hand |