Segments-barometer navy of gilded brass. French Patent system of LouisBourdon ( about 1850 )

Body and bezel in polished brass lacquered gold. With openwork dial, and pressure indications in cm of mercury, its glass with messing steel hand-index

Diameter 13,5 cm Thickness 5,5 cm

The marine watches and barometers , equipped the medium boats, fischerman offen. They have the particularity of being tight to salwater packets. They are always made from finest materials : brass, bronze, chrome steel .