The Seiko Y101-5019 is a watch model based on the Y101 movement.
Parts List
| RE2N66GN00 | crystal |
| 35M98NF1 | crown |
| 0A2600B01 | case back gasket |
| 0G0055B01 | case back gasket - crown and stem gasket |
| 0G0055B | case back gasket |
| 0A2600B | case back gasket |
| 7BS9ZY | band - leather band |
| 08C32AGH | hand - hour hand |
| 09C33AGM | hand - minute hand |
| 0354765 | others - winding stem |
| 82707580 | others - case ring |
| A180BS | others - push pin |
| Y1015010XG18 | others - dial |
| Y10150192S | others - case |
| 13SC04A2 | others - second hand |