The Seiko Y100-5199 is a watch model based on the Y100 movement.
Parts List
| ES8N28GN00 | crystal |
| 30MP0NF3 | crown |
| 0A2600B01 | case back gasket |
| 0G0055B | case back gasket |
| 0A2600B | case back gasket |
| 7BS9ZY | band - leather band |
| 82711440 | others - case ring |
| A140BS | others - push pin |
| Y10051992S | others - case |
| Y1005260XG18 | others - dial |
| 11C16AGH | others - hour hand |
| 0354765 | others - winding stem |
| 10C26AGM | others - minute hand |