Technical Profile
Architecture and specifications
Movement typeAutomatic
Frequency21,600 vph
Power reserve70 h
Jewels24
ComplicationsDate
ArchitectureManufacture
Reliability profileProven
Service accessHigh
TimeHunter Analysis
Collector context
Extended-reserve evolution of Seiko’s 6R family. Evaluate the complete watch rather than the calibre in isolation: condition, regulation, service history and correct parts materially affect ownership quality.
A famous calibre can add historical interest, but maintenance condition remains more important than reputation alone.