Technical Profile
Architecture and specifications
Movement typeManual chronograph
Frequency21,600 vph
Power reserve50 h
Jewels26
ComplicationsChronograph
ArchitectureManufacture
Reliability profileProven
Service accessSpecialist
TimeHunter Analysis
Collector context
Co-Axial Master Chronometer evolution of the Moonwatch movement. 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.