The Seiko 9531-603C is a watch model based on the 9531 movement.
Parts List
| 270W32SN01 | crystal - crystal |
| 25M20NA3 | crown |
| 25M20NS3 | crown |
| 0A2500N01 | case back gasket - rotating bezel gasket |
| 86580580 | crystal gasket - plastic gasket for crystal |
| LK37D | band - band |
| AL31B | band - band |
| 11X14CSM | others - minute hand |
| 12X06CSH | others - hour hand |
| 11X14CGM | others - minute hand |
| 12X06CGH | others - hour hand |
| 12ST08CG | others - second hand |
| 12ST08CS | others - second hand |
| 12ST08DG | others - second hand |
| 0354855 | others - winding stem |
| 82804260 | others - case ring |
| 9531603C61 | others - case |
| 9531603C | others - case back |
| 9531603C75 | others - case |
| 87020163 | others - back plate |
| 95314 | others - machine code |
| 95316050XS23 | others - dial |
| 95316080XS14 | others - dial |
| A170AS | others - push pin |
| EZ0035B01 | others - crown and stem gasket |