Seiko · Model Reference
Seiko Prospex Turtle
Cushion-case automatic diver descended from Seiko’s 1970s professional watches.
Launch1976 lineage
ReferenceProspex Turtle
TypeDive watch
CaseApprox. 45 mm
Market Pricing · July 2026
Price guide.
What affects value
Exact reference, case material, dial variant, size, movement generation, condition, service history, full set and whether components are original or service replacements.
Indicative European market ranges in EUR. Exact value depends on reference, configuration, condition, originality, service history, completeness and current demand. This is editorial guidance, not a purchase offer or investment advice.
Model story.
Cushion-case automatic diver descended from Seiko’s 1970s professional watches. This entry provides an editorial overview for collectors and buyers.
Movement
Automatic Seiko calibre
Water resistance
200 metres
Production status
Current or reference dependent
Collector note
Condition, originality, configuration and service history influence desirability.
Buyer guide.
Verify reference, movement, case, dial, bracelet or strap, operation and service documentation.
TimeHunter Insight
Cushion-case automatic diver descended from Seiko’s 1970s professional watches.