The Seiko 7546-840A is a watch model based on the 7546 movement.
Parts List
| 315W08GN00 | crystal |
| 40M58NA1 | crown - crown |
| 40M58NS1 | crown - crown |
| FH2980B01 | case back gasket - case back gasket |
| DJ0060B01 | others - crown gasket |
Caliber 7546
Seiko 7546-840A Watch Guide