The Seiko 4206-5240 is a watch model based on the 4206 movement.
Parts List
| ES5W61LN00 | crystal |
| 40MF5NS1 | crown |
| 40MF5NN1 | crown |
| FH2030B01 | case back gasket - case back gasket |
| DB0055B01 | case back gasket - crown and stem gasket |
Caliber 4206
Seiko 4206-5240 Watch Guide