The Seiko 7546-840B is a watch model based on the 7546 movement.
Parts List
| 315W08GN00 | crystal |
| 40M58NA1 | crown - crown |
| 40M58NS1 | crown - crown |
| 86179280 | case back gasket |
| FH2980B01 | case back gasket - case back gasket |
Caliber 7546
Seiko 7546-840B Watch Guide