The Seiko 5E31-6C30 is a watch model based on the 5E31 movement.
Parts List
| 250W08SN01 | crystal |
| 35MF6NA1 | crown |
| 0F250NAAS | case back gasket - case back gasket |
| 86565960 | crystal gasket - plastic gasket for crystal |
| QB46A | band - band |
| 3AA125F0ANG | others - second hand |
| 0351624 | others - winding stem |
| 81180229 | others - bracelet fixing pipe |
| 81604259 | others - bracelet fixing pin |
| 82820420 | others - case ring |
| 5E316C30XB | others - case |
| 5E316C30 | others - case back |
| 5E316C30XBA | others - case |
| 5E315 | others - machine code |
| 5E316C40XN14 | others - dial |
| 5E316G10XS14 | others - dial |
| 87020283 | others - back plate |
| 11X42DGH | others - hour hand |
| 11X42DGM | others - minute hand |
| EA0040B0A | others - crown and stem gasket |
| 1BB077S0BDG | others - hour hand |
| 2BB105S0BDG | others - minute hand |