The Seiko Y101-6100 is a watch model based on the Y101 movement.
Parts List
| 270N08GN00 | crystal - crystal |
| 30MP2NF3 | crown - crown |
| 0G2585B03 | case back gasket |
| AK89A | band - leather band |
| AK88A | band - band |
| 12T16NGH | others - hour hand |
| 0354765 | others - winding stem |
| 11T08AGM | others - minute hand |
| Y10161002S | others - case |
| 82704980 | others - case ring |
| A180BS | others - push pin |
| 13SC04A2 | others - second hand |
| 11T08NGM | others - minute hand |
| 12T16AGH | others - hour hand |