Some specifications for this reference are on file; the record is incomplete.
Seiko · Prospex
Turtle
Ref. 6309-7040
discontinuedExport cushion diverPartially documentedEvidenceProbableLast reviewed Not yet reviewed
Reference photography not yet on file
The export Turtle, produced across twelve years and in very large numbers — which is why survivors show every possible service history. The 6309A neither hacks nor hand-winds; both absences are correct and are not faults.
Some specifications for this reference require verification against manufacturer documentation.
At a glance
- Brand
- Seiko
- Collection
- Prospex
- Reference
- 6309-7040
- Production
- 1976–1988
- Caliber
- 6309A
- Case diameter
- 44mm
- Case material
- Stainless steel
Related references
Reference family timeline
Every generation in this lineage in production order. Spans are as documented; an open end means the reference is current or its end year is not established.