The Seiko Y101-6120 is a watch model based on the Y101 movement.
Parts List
| 270N52GN00 | crystal |
| 35M98NW1 | crown |
| 0G2500B01 | case back gasket - case back gasket |
| GK87A | band - leather band |
| 10T28ALH | others - hour hand |
| 0354765 | others - winding stem |
| A160BS | others - push pin |
| 10T28ALM | others - minute hand |