The Seiko 4N70-5031 is a watch model based on the 4N70 movement.
Parts List
| K00A51SN01 | crystal - crystal (sapphire) |
| 25M65DE4 | crown - crown |
| 25M65DXA | crown - crown |
| 0H1700N01 | case back gasket - case back gasket |
| WI294 | band - band |
| WI295 | band - band |
| 2CG055L0BHS | others - minute hand |
| 1CG037L0BHG | others - hour hand |
| 05Y07JGH | others - hour hand |
| 05Y07JGM | others - minute hand |
| 05Y07JSH | others - hour hand |
| 2CG055L0BHG | others - minute hand |
| DZ0040B01 | others - crown and stem gasket |
| 82852110 | others - case ring |
| 4N7050311EA | others - case |
| 4N705031 | others - case back |
| 4N70503143A | others - case |
| 1CG037L0BHS | others - hour hand |
| 05Y07JSM | others - minute hand |