The Seiko Y131-6630 is a watch model based on the Y131 movement.
Parts List
| 280N52AN00 | crystal |
| 35MP8NF1 | crown |
| 0H2520B01 | case back gasket |
| 089ZAK | band - leather band |
| 374LC | band |
| 371LC | band |
| 372LC | band |
| A160BS | others - push pin |
| Y1312978XG14 | others - dial |
| Y1312978XS14 | others - dial |
| Y1312988XS19 | others - dial |
| Y1312998XS19 | others - dial |
| Y1313028XS14 | others - dial |
| Y1313038XS14 | others - dial |
| Y1316630EM | others - case |
| Y1316630FF | others - case |
| 0354786 | others - winding stem |
| 11C22AGM | others - minute hand |
| EZ0058B01 | others - crown and stem gasket |
| 13SC04A2 | others - second hand |
| 11C22AGH | others - hour hand |
| 11C22NGM | others - minute hand |
| 11C22NGH | others - hour hand |