A silver key wind dual sided open face pocket watch with tidal and moon age indication
Date: Circa 1830Movement: Fusee vergeDial: One side with white enamel, black Roman numeral hour markers, subsidiary dials for day, date and month indication, the other dial with white enamel, subsidiary dials for dual time in hours, minutes and regulator, tidal indication and moon age, central rotating seconds, gilt handsCase: Polished silverSize: 55mm