Some specifications for this reference are on file; the record is incomplete.
Seiko · Vintage
Bell-Matic
Ref. 4006-7000
discontinuedAutomatic alarmPartially documentedLast reviewed Not yet reviewed
Missing informationCore fields not yet documented for this reference: Water resistance
Authentication Notes
Caseback
MediumProbable
The caseback is part of the alarm mechanism
The alarm hammer strikes a pin in the caseback. A replacement caseback from a different Bell-Matic reference may fit and seal while muting or altering the alarm. When assessing alarm function, confirm the caseback is the correct part before attributing the fault to the movement.
Inspection points
No inspection checklist has been published for this reference.