The Seiko Y100-4029 is a watch model based on the Y100 movement.
Parts List
| SACN92GN00 | crystal |
| 35M98NF1 | crown |
| 0G0055B01 | case back gasket - crown and stem gasket |
| 0H2702B01 | case back gasket - rotating bezel gasket |
| 184LA | band - leather band |
| 248LA | band - leather band |
| 09C70ZGH | hand - hour hand |
| 09C70ZGM | hand - minute hand |
| 0354765 | others - winding stem |
| 82716080 | others - case ring |
| A180BS | others - push pin |
| Y10040292T | others - case |
| Y1004029JF | others - case |
| Y1004410X994 | others - dial |
| Y1004490XB19 | others - dial |
| 09C70DGM | others - minute hand |
| 09C70DGH | others - hour hand |