The Seiko 7431-7001 is a watch model based on the 7431 movement.
Parts List
| 280N41JN00 | crystal - crystal |
| 30N49NA1 | crown - crown |
| 0G2750B01 | case back gasket - case back gasket |
| DZ0065B01 | case back gasket - button gasket |
Caliber 7431
Seiko 7431-7001 Watch Guide